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Chemisch reagens Kwas borowy (CAS 10043-35-3). Volledige encyclopedische kaart — classificatie, eigenschappen en veiligheidsgegevens — hieronder.

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MolGod_SDSCARD_1
REACH 2020/878
v2 · 22.07.2026
Category:
🧬 3D-molecuulvisualisator
Molecuul laden...
3D-model Boric Acid, CAS 10043-35-3, molecuulformule BH3O3, molaire massa 61.84 g/mol
Chemisch overzicht: Boric AcidMolGod_OVERVIEW_1
MolecuulformuleBH3O3
Molecuulmassa61.84 g/mol
Smeltpunt171 °C
Dichtheid1.5 g/cm³
IUPAC-naamboric acid
SMILESB(O)(O)O
InChIKeyKGBXLFKZBHKPEV-UHFFFAOYSA-N

Synoniemen: BORIC ACID · Orthoboric acid · 10043-35-3 · Boracic acid · Borofax

Gegevensbronnen: PubChem (NLM/NIH)
Laatst bijgewerkt: 2026-11-10

WETENSCHAPPELIJK ONDERZOEK

[1]Europe PMC2026
Effects of Dietary Salt and Boric Acid on Milk Quality in Savak Akkaraman Sheep.
et al.. (2026). "Effects of Dietary Salt and Boric Acid on Milk Quality in Savak Akkaraman Sheep.". https://doi.org/10.3390/ani16020233
Ga naar het volledige onderzoek ↗
[2]Europe PMC2026
Impact of Boric Acid on the Stability of Hydrogen Peroxide in Aqueous Solution.
(2026). "Impact of Boric Acid on the Stability of Hydrogen Peroxide in Aqueous Solution.". https://doi.org/10.1021/acsomega.6c03206
Ga naar het volledige onderzoek ↗
[3]Europe PMC2026
Identification of a Riboflavin-Boric Acid Complex by Electrospray Ionization Mass Spectrometry.
(2026). "Identification of a Riboflavin-Boric Acid Complex by Electrospray Ionization Mass Spectrometry.". https://doi.org/10.1007/s12011-026-05110-9
Ga naar het volledige onderzoek ↗
[4]Europe PMC2026
Acute Boric Acid Poisoning With Chronic Renal Failure Successfully Treated With Continuous Hemofiltration.
et al.. (2026). "Acute Boric Acid Poisoning With Chronic Renal Failure Successfully Treated With Continuous Hemofiltration.". https://doi.org/10.7759/cureus.103795
Ga naar het volledige onderzoek ↗
[5]Europe PMC2026
Enhancing tuber quality, storage performance and yield response of potato to combined foliar application of zinc sulphate and…
et al.. (2026). "Enhancing tuber quality, storage performance and yield response of potato to combined foliar application of zinc sulphate and boric acid.". https://doi.org/10.1038/s41598-026-46146-0
Ga naar het volledige onderzoek ↗
[6]Doaj2026
Enhancing electrical conductivity of coal-derived graphite by boric acid catalysis: Correlating 2H/3R phase ratio with crystallite structure.
Xiaomei Zhang, Xinyu Chen, Yeersheng Jiangbaolati et al.. (2026). "Enhancing electrical conductivity of coal-derived graphite by boric acid catalysis: Correlating 2H/3R phase ratio with crystallite st
Ga naar het volledige onderzoek ↗
[7]Europe PMC2025
Proteomic profiling of Escherichia coli cytoplasmic proteins under sublethal boric acid stress.
et al.. (2025). "Proteomic profiling of Escherichia coli cytoplasmic proteins under sublethal boric acid stress.". https://doi.org/10.55730/1300-0152.2745
Ga naar het volledige onderzoek ↗
[8]Europe PMC2025
Unintentional boric acid exposure: a case report and boron level monitoring.
et al.. (2025). "Unintentional boric acid exposure: a case report and boron level monitoring.". https://doi.org/10.1186/s12887-025-06254-8
Ga naar het volledige onderzoek ↗
📚 Wetenschappelijke referenties (Chicago Author-Date) 20 refs · 4 baz

MOLEKUŁA Bibliografie per CAS (live uit 13+ databases)

Bronnen: db:Europe PMC (11) · db:doaj (1) · db:openalex (8)

  1. db:Europe PMC et al.. (2026). "Effects of Dietary Salt and Boric Acid on Milk Quality in Savak Akkaraman Sheep.". https://doi.org/10.3390/ani16020233 →
  2. db:Europe PMC (2026). "Effects of boric acid on 'Muscat Hamburg' and 'Balıkçı Siyahı' grapevines under salt stress". https://doi.org/10.21203/rs.3.rs-9283096/v1 →
  3. db:Europe PMC (2026). "Impact of Boric Acid on the Stability of Hydrogen Peroxide in Aqueous Solution.". https://doi.org/10.1021/acsomega.6c03206 →
  4. db:Europe PMC (2026). "Identification of a Riboflavin-Boric Acid Complex by Electrospray Ionization Mass Spectrometry.". https://doi.org/10.1007/s12011-026-05110-9 →
  5. db:Europe PMC et al.. (2026). "Acute Boric Acid Poisoning With Chronic Renal Failure Successfully Treated With Continuous Hemofiltration.". https://doi.org/10.7759/cureus.103795 →
  6. db:Europe PMC et al.. (2026). "Enhancing tuber quality, storage performance and yield response of potato to combined foliar application of zinc sulphate and boric acid.". https://doi.org/10.1038/s41598-026-46146-0 →
  7. db:doaj Xiaomei Zhang, Xinyu Chen, Yeersheng Jiangbaolati et al.. (2026). "Enhancing electrical conductivity of coal-derived graphite by boric acid catalysis: Correlating 2H/3R phase ratio with crystallite structure.". PLoS ONE. https://doi.org/10.1371/journal.pone.0347483 →
  8. db:Europe PMC et al.. (2025). "Proteomic profiling of Escherichia coli cytoplasmic proteins under sublethal boric acid stress.". https://doi.org/10.55730/1300-0152.2745 →
  9. db:Europe PMC et al.. (2025). "Unintentional boric acid exposure: a case report and boron level monitoring.". https://doi.org/10.1186/s12887-025-06254-8 →
  10. db:Europe PMC et al.. (2025). "Boric acid-functionalized bentonite nanostructures attenuated paraquat-induced pulmonary injuries in rats.". https://doi.org/10.1038/s41598-025-27334-w →
  11. db:Europe PMC et al.. (2025). "Nuclear quantum dynamics of boric acid as probed by a thermal-to-epithermal neutron station.". https://doi.org/10.1038/s41598-025-29342-2 →
  12. db:Europe PMC et al.. (2025). "Kinetic and Thermodynamic Investigation into the Formation of Diol-Boric Acid Complexes Using NMR and Computational Analysis.". https://doi.org/10.1021/acsomega.5c07314 →
  13. db:openalex Giulia Montagner, Silvia Dominici, Simona Piaggi et al.. (2023). "Redox Mechanisms Underlying the Cytostatic Effects of Boric Acid on Cancer Cells—An Issue Still Open". Antioxidants. https://doi.org/10.3390/antiox12061302 →
  14. db:openalex Qiangqiang Liu, Yubo Chai, Ni Lin et al.. (2020). "Flame Retardant Properties and Thermal Decomposition Kinetics of Wood Treated with Boric Acid Modified Silica Sol". Materials. https://doi.org/10.3390/ma13204478 →
  15. db:openalex AtLee T. D. Watson, Vicki Sutherland, Helen Cunny et al.. (2020). "Postnatal Effects of Gestational and Lactational Gavage Exposure to Boric Acid in the Developing Sprague Dawley Rat". Toxicological Sciences. https://doi.org/10.1093/toxsci/kfaa061 →
  16. db:openalex Hasan Türkez, Fatime Geyikoğlu, Suat Çolak. (2011). "The protective effect of boric acid on aluminum-induced hepatotoxicity and genotoxicity in rats". TURKISH JOURNAL OF BIOLOGY. https://doi.org/10.3906/biy-0902-11 →
  17. db:openalex Erhan Ayşan, Fikrettin Şahi̇n, Dilek Telci et al.. (2011). "Body Weight Reducing Effect of Oral Boric Acid Intake". International Journal of Medical Sciences. https://doi.org/10.7150/ijms.8.653 →
  18. db:openalex Hasan Türkez, Fatime Geyikoğlu. (2010). "Boric acid: a potential chemoprotective agent against aflatoxin b1 toxicity in human blood". Cytotechnology. https://doi.org/10.1007/s10616-010-9272-2 →
  19. db:openalex Amin Rostami, Jamal Akradi, Firoz Ahmad‐Jangi. (2010). "Boric acid as cost-effective and recyclable catalyst for trimethylsilyl protection and deprotection of alcohols and phenols". Journal of the Brazilian Chemical Society. https://doi.org/10.1590/s0103-50532010000800026 →
  20. db:openalex (1987). "NTP Toxicology and Carcinogenesis Studies of Boric Acid (CAS No. 10043-35-3) in B6C3F1 Mice (Feed Studies).". PubMed.
📊 Fysisch-chemische eigenschappen

Snel overzicht

Formule: BH3O3
MW: 61.84 g/mol
CAS: 10043-35-3
Uiterlijk: Colorless, transparent crystals or white granules or powder
Geur: Odorless
Geur: Odorless

Gedetailleerde eigenschappen

Eigenschap Waarde Eenheid Condities Bron
Dichtheid (ρ) 1.5000 g/cm³ 20 °C (68 °F) PubChem PUG-View (2026)
Smeltpunt (mp) 171.00 °C (339.8 °F) 1 atm PubChem PUG-View (2026)
Kookpunt (bp) 572 °F at 760 mmHg (decomposes) (NTP, 1992) PubChem (NIH/NLM) ↗
Dampdruk 1.6X10-6 mm Hg at 25 °C (2.136X10-4 Pa); log P (in Pa) = 26.83 - 9094/T where T is deg K PubChem (NIH/NLM) ↗
Wateroplosbaarheid 10 to 50 mg/mL at 66 °F (NTP, 1992) PubChem (NIH/NLM) ↗
Brekingsindex (nD) Index of refraction: 1.337, 1.461, 1.462 PubChem (NIH/NLM) ↗
🔬 Geavanceerde eigenschappen

Chemische identificatoren

SMILES: B(O)(O)O
InChI: InChI=1S/BH3O3/c2-1(3)4/h2-4H
InChIKey: KGBXLFKZBHKPEV-UHFFFAOYSA-N

Gegevensbronnen: PubChem, NIST Chemistry WebBook, CRC Handbook of Chemistry and Physics (103rd ed.)

Laatst bijgewerkt: 2026-06-30

Regelgevingsstatus van de stof
Deze verbinding: is onderworpen aan beperkingen voor specifieke toepassingen (REACH bijlage XVII); staat op de SVHC-kandidaatslijst (REACH art. 59). Inventarissen: EU/REACH-Ann17, EU/SVHC. Regelgevingsinformatie — beperkt de aankoop in deze winkel niet.
🧮 StoichiometrierekenmachineMolGod_STOICH_1
🔍 Externe identificatorenMolGod_EXTID_1
14 van 16 ID-systemen88%
DatabaseIdentificatorActies
CAS Registry Number10043-35-3Openen →
PubChem CID7628Openen →
InChIKeyKGBXLFKZBHKPEV-UHFFFAOYSA-NOpenen →
InChIInChI=1S/BH3O3/c2-1(3)4/h2-4H
SMILESB(O)(O)O
EC Number233-139-2Openen →
DrugBankDB11326Openen →
KEGG CompoundD01089Openen →
HMDBHMDB0035731Openen →
ChemSpider7346Openen →
MeSH UID (NLM)C032688Openen →
UNII (FDA)R57ZHV85D4Openen →
NSC Number (NCI)81726Openen →
WikiData QIDQ187045Openen →

Bronnen: PubChem (NIH), Wikidata SPARQL, KEGG, ChEMBL (EBI), CompTox CTX (EPA).

📡 Spectroscopie — CAS 10043-35-3MolGod_SPECHUB_MAIN
📊 Databases met spectroscopische spectra — inline-gegevens 9 bronnen MolGod_SPECDB_2

Spectra worden op aanvraag opgehaald uit 9 bronnen. Elk spectrum wordt opgeslagen in onze database — de volgende keer openen = geen enkele aanvraag naar de externe API. Download JCAMP-DX / CSV / PNG bij elk spectrum zonder te zoeken.

IR IR (Infrared) — NIST WebBook
Public domain (US Federal)
▶ Klik om het spectrum te laden
🔗 Bron
— punten
📚 NIST Chemistry WebBook, SRD 69
MS (NIST) Mass Spectrum (EI) — NIST WebBook
Public domain (US Federal)
▶ Klik om het spectrum te laden
🔗 Bron
— punten
📚 NIST Standard Reference Database 1A
UV-Vis UV/Visible Absorption — NIST WebBook
Public domain (US Federal)
▶ Klik om het spectrum te laden
🔗 Bron
— punten
📚 NIST Chemistry WebBook, SRD 69
¹H NMR NMR (¹H, ¹³C) — NMRShiftDB
CC-BY-SA 4.0
▶ Klik om het spectrum te laden
🔗 Bron
— punten
📚 Steinbeck C et al. (2003) J. Chem. Inf. Comput. Sci. 43(1):10–16 DOI: 10.1021/ci025588g
MS (MoNA) MoNA — MassBank of North America
CC-BY 4.0
▶ Klik om het spectrum te laden
🔗 Bron
— punten
📚 MassBank of North America (UC Davis) DOI: 10.1002/jms.1777
IR/NMR/MS (SDBS) SDBS — Spectral Database for Organic Compounds (Japan AIST)
Free for non-commercial

Referentiebron — geen openbare API. Openen in een externe database:

🔗 IR/NMR/MS (SDBS) →
📚 SDBSWeb: https://sdbs.db.aist.go.jp (AIST, Japan)
JP Monograph Japanese Pharmacopoeia — Monographs
Reference only

Referentiebron — geen openbare API. Openen in een externe database:

🔗 JP Monograph →
📚 Japanese Pharmacopoeia 18th Edition (2021)
WHO INN WHO — International Nonproprietary Names
WHO Model Lists (free)

Referentiebron — geen openbare API. Openen in een externe database:

🔗 WHO INN →
📚 WHO INN Programme
DOAJ DOAJ — Directory of Open Access Journals
OA journal index (mixed)

Referentiebron — geen openbare API. Openen in een externe database:

🔗 DOAJ →
📚 DOAJ — doaj.org

Gegevens opgehaald via MolGod_Spectra_Remote_Fetcher (JCAMP-DX-parser) en opgeslagen in de tabel wp_molgod_spectra_cache. Geen dubbele downloads, geen herhaalde aanvragen naar NIST bij volgende openingen. Licenties worden nageleefd (alleen een deep-link plus onze eigen visualisatie wordt gepubliceerd).

🔬 Interactieve spectra (live — NIST / MoNA / NMRShiftDB / SDBS) (2)

Gegevens worden live opgehaald uit meerdere bronnen (priority-chain). JCAMP-DX / CSV / PNG beschikbaar om te downloaden onder elk spectrum.

IR — Fourier-transform infrarood

IR — Fourier-transform infrarood wordt geladen…

MS — massaspectrometrie (EI 70eV)

MS — massaspectrometrie (EI 70eV) wordt geladen…

📐 Fysisch-chemische eigenschappen (database) 3 velden MolGod-score: Betrouwbaar
Eigenschap Waarde Eenheid Conditions Source
Smeltpunt 171.00 [5][6][11] °C 1 atm PubChem PUG-View (2026)
Wateroplosbaarheid 50.000 [5] g/L 25°C PubChem PUG-View (2026)
Dichtheid (ρ) 1.5000 [5] g/cm³ 20°C PubChem PUG-View (2026)
📚 Wetenschappelijke referenties (Chicago Author-Date) (12 bronnen)
  1. Haynes, William M., ed. 2024. CRC Handbook of Chemistry and Physics. 105th ed. Boca Raton: CRC Press/Taylor & Francis. ISBN 978-1-032-55554-4. ↗
  2. National Institute of Standards and Technology. 2024. "NIST Chemistry WebBook, SRD 69." Gaithersburg, MD: NIST. Accessed 2025-01-01. ↗
  3. Yaws, Carl L. 2014. The Yaws Handbook of Physical Properties for Hydrocarbons and Chemicals. 2nd ed. Oxford: Gulf Professional Publishing.
  4. PubChem. 2024. "PubChem Compound Database." National Library of Medicine, National Institutes of Health. Accessed 2025-01-01. ↗
  5. Marrero, J., and R. Gani. 2001. "Group-Contribution Based Estimation of Pure Component Properties." Fluid Phase Equilibria 183–184: 183–208. ↗
  6. Joback, K. G., and R. C. Reid. 1987. "Estimation of Pure-Component Properties from Group-Contributions." Chemical Engineering Communications 57 (1–6): 233–243. ↗
  7. Sangster, J. 1997. Octanol-Water Partition Coefficients: Fundamentals and Physical Chemistry. Chichester: Wiley. ISBN 978-0-471-97397-3.
  8. Mannhold, Raimund, and Han van de Waterbeemd. 2001. "Substructure and Whole Molecule Approaches for Calculating Log P." Journal of Computer-Aided Molecular Design 15 (4): 337–354. ↗
  9. Perrin, Ditlev D., Boyd Dempsey, and E. P. Serjeant. 1981. pKa Prediction for Organic Acids and Bases. London: Chapman and Hall. ISBN 0-412-21090-5.
  10. Constantinou, Leonidas, and Rafiqul Gani. 1994. "New Group Contribution Method for Estimating Properties of Pure Compounds." AIChE Journal 40 (10): 1697–1710. ↗
  11. Ertl, Peter, Bernhard Rohde, and Paul Selzer. 2000. "Fast Calculation of Molecular Polar Surface Area as a Sum of Fragment-Based Contributions and Its Application to the Prediction of Drug Transport Properties." Journal of Medicinal Chemistry 43 (20): 3714–3717. ↗
🔄 Omrekenaar voor concentratie-eenheden LIVE MolGod_UNITCONV_1

Voer de concentratie Boric Acid in een willekeurige eenheid in — de rest wordt automatisch berekend.

MW: 61.84 g/mol · IUPAC Gold Book ↗

⚗️ Conversieformules + citaten (per formule)
ConversieFormuleNauwkeurigheidBron
% (w/v) ↔ molarityc (mol/L) = (% × 10) / MW±0.5% rel. when density ≈ 1.0 g/mLIUPAC (2019)
millimolar ↔ molarc (mol/L) = mM × 10⁻³ExactCohen ER, Cvitaš T, Frey JG, Holmström B, Kuchitsu K, Marquardt R, Mills I, Pavese F, Quack M, Stohner J, Strauss HL, Takami M, Thor AJ (2007)
molarity (mol/L)c = n/V = (m/MW)/V±0.1% (depends on MW precision)IUPAC (2019)
parts per million (mg/L) ↔ molarityc (mol/L) = ppm / (1000 × MW); equivalently ppm = mg/L for dilute aqueous±1% (density-independent for dilute solutions)IUPAC (2019)
mg/mL ↔ molarityc (mol/L) = (mg/mL × 1000) / MW / 1000 = mg/mL / MW × 1±0.2%Cohen ER, Cvitaš T, Frey JG, Holmström B, Kuchitsu K, Marquardt R, Mills I, Pavese F, Quack M, Stohner J, Strauss HL, Takami M, Thor AJ (2007)
g/L ↔ molarityc (mol/L) = (g/L) / MW±0.1% (depends on MW precision)Cohen ER, Cvitaš T, Frey JG, Holmström B, Kuchitsu K, Marquardt R, Mills I, Pavese F, Quack M, Stohner J, Strauss HL, Takami M, Thor AJ (2007)
mmol/L ↔ molarityc (mol/L) = mmol/L × 10⁻³ExactCohen ER, Cvitaš T, Frey JG, Holmström B, Kuchitsu K, Marquardt R, Mills I, Pavese F, Quack M, Stohner J, Strauss HL, Takami M, Thor AJ (2007)
Celsius ↔ KelvinT(K) = t(°C) + 273.15±0.01 K (ITS-90 scale)BIPM (Bureau International des Poids et Mesures) (2019)
Celsius ↔ FahrenheitT(°F) = T(°C) × 9/5 + 32±0.1 °FThompson A, Taylor BN (2008)
density-corrected % ↔ molarityc (mol/L) = (%w/w × ρ × 10) / MW, ρ in g/mL±0.1% when ρ known to 3 decimalsCohen ER, Cvitaš T, Frey JG, Holmström B, Kuchitsu K, Marquardt R, Mills I, Pavese F, Quack M, Stohner J, Strauss HL, Takami M, Thor AJ (2007)
📚 Bibliografie (8 gezaghebbende bronnen)
  1. Thompson A, Taylor BN (2008). Guide for the Use of the International System of Units (SI). NIST Special Publication 811 · DOI: 10.6028/NIST.SP.811-2008
    → Primary SI standard for US scientific usage
  2. Cohen ER, Cvitaš T, Frey JG, Holmström B, Kuchitsu K, Marquardt R, Mills I, Pavese F, Quack M, Stohner J, Strauss HL, Takami M, Thor AJ (2007). Quantities, Units and Symbols in Physical Chemistry — The IUPAC Green Book. RSC Publishing, 3rd ed. · DOI: 10.1039/9781847557889 · ISBN: 978-0-85404-433-7
    → Canonical IUPAC guide for chemistry quantities/units
  3. BIPM (Bureau International des Poids et Mesures) (2019). The International System of Units (SI), 9th edition. BIPM · ↗
    → International SI definitions (incl. redefined kilogram 2019)
  4. ISO/IEC (2022). Quantities and units — Part 1: General. International Organization for Standardization — ISO 80000-1:2022 · ↗
    → General rules for physical quantities and units
  5. ISO/IEC (2019). Quantities and units — Part 9: Physical chemistry and molecular physics. International Organization for Standardization — ISO 80000-9:2019 · ↗
    → Concentration / molality / amount-of-substance conventions
  6. Tiesinga E, Mohr PJ, Newell DB, Taylor BN (2021). CODATA recommended values of the fundamental physical constants: 2018. Rev. Mod. Phys. 93(2):025010 · DOI: 10.1103/RevModPhys.93.025010
    → Avogadro, gas constant, molar volume (2019 SI revision)
  7. IUPAC (2019). Compendium of Chemical Terminology — the IUPAC Gold Book (online). IUPAC · DOI: 10.1351/goldbook
    → Definitions of mass fraction, molality, normality, ppm, activity
  8. Mills IM, Cvitaš T, Homann K, Kallay N, Kuchitsu K (1988). Quantities, Units and Symbols in Physical Chemistry. Blackwell Scientific Publications, 1st ed. · ISBN: 0-632-01773-5
    → Historical predecessor of IUPAC Green Book
🧪 Wizard voor het bereiden van oplossingen WIZARD MolGod_PREP_1
① Selecteer concentratie
② Doelvolume
③ Oplosmiddel

Berekeningen volgens: IUPAC Gold Book ↗, Merck ↗

🛡️ Veiligheid — CAS 10043-35-3MolGod_SAFEHUB_MAIN
Mededeling over gegevensbeperkingen. De veiligheidsinformatie op deze pagina is uitsluitend ter informatie en vervangt geen volledig veiligheidsinformatieblad (SDS). Raadpleeg vóór gebruik van het product het actuele veiligheidsinformatieblad van de fabrikant en de GHS/CLP-richtlijnen. De CLP-indeling geldt voor de zuivere bulkstof, niet voor commerciële formuleringen.

GHS/CLP-indeling — Verordening (EG) nr. 1272/2008 + UN GHS Rev. 9 (2021).

⚠️ Gevaar (Danger)
GHS08 — Gezondheidsgevaar
GHS08 Gezondheidsgevaar

🚨 Gevarenaanduidingen (H)

  • H360FD — Kan de vruchtbaarheid schaden. Kan het ongeboren kind schaden.

🛡 Voorzorgsmaatregelen (P)

  • P203 — Vóór gebruik alle veiligheidsinstructies raadplegen, lezen en opvolgen.

✓ Geharmoniseerde indeling overeenkomstig bijlage VI bij de CLP-verordening (EG) 1272/2008 (officiële, bindende indeling). Indexnummer: 005-007-00-2.

Referentie (Chicago): European Chemicals Agency. "boric acid, Index No. 005-007-00-2." In Table 3 of Annex VI to Regulation (EC) No 1272/2008 (CLP Regulation), 23rd Adaptation to Technical Progress. Helsinki: European Chemicals Agency, 2026. https://echa.europa.eu/information-on-chemicals/annex-vi-to-clp.

Vertalingen: CLP-verordening (EG) 1272/2008, Bijlage III en IV. Gegevens: PubChem/NLM.

📚 Geconsolideerde wetenschappelijke referenties — Chicago Author-Date 10 bronnen

Referenties verzameld uit alle tabbladen van de Safety Hub. CAS: 10043-35-3 · PubChem ↗

  1. Parlament Europejski i Rada UE. 2008. "Rozporządzenie (WE) nr 1272/2008 w sprawie klasyfikacji, oznakowania i pakowania substancji (CLP)." Dz.Urz. UE L 353. [↗] GHS, Regelgeving
  2. United Nations Economic Commission for Europe (UNECE). 2021. "Globally Harmonized System of Classification and Labelling of Chemicals (GHS), Ninth Revised Edition." United Nations, Geneva. [↗] GHS
  3. Goldfrank, Lewis R., Robert S. Hoffman, Mary Ann Howland, et al.. 2019. "Goldfrank's Toxicologic Emergencies, 11th ed.." McGraw-Hill Education, New York. ISBN 978-1-25-985961-8. Pierwsza pomoc, Toksykologia
  4. National Institute for Occupational Safety and Health (NIOSH). 2023. "NIOSH Pocket Guide to Chemical Hazards (DHHS Publ. 2005-149)." U.S. Department of Health and Human Services / CDC, Cincinnati, OH. [↗] Pierwsza pomoc, PPE, Toksykologia
  5. European Committee for Standardization (CEN). 2016. "EN 374-1:2016 — Protective gloves against dangerous chemicals and micro-organisms." CEN, Brussels. [↗] PPE
  6. UNECE. 2023. "European Agreement Concerning the International Carriage of Dangerous Goods by Road (ADR 2025)." United Nations, Geneva. [↗] Utylizacja, Regulacje
  7. National Fire Protection Association (NFPA). 2022. "NFPA 400 — Hazardous Materials Code." NFPA, Quincy, MA. [↗] Magazynowanie
  8. Urben, P.G. (ed.). 2017. "Bretherick's Handbook of Reactive Chemical Hazards, 8th ed.." Butterworth-Heinemann / Elsevier, Oxford. [↗] Magazynowanie
  9. Ministerstwo Klimatu i Środowiska RP. 2023. "Baza danych o produktach i opakowaniach oraz o gospodarce odpadami (BDO)." Ministerstwo Klimatu i Środowiska, Warszawa. [↗] Utylizacja
  10. International Agency for Research on Cancer (IARC / WHO). 2024. "IARC Monographs on the Identification of Carcinogenic Hazards to Humans — List of Classifications." WHO, Lyon. [↗] Toksykologia

Tabbladen met eigen referenties (Emergency, PPE, Storage, Waste) bevatten aanvullende bibliografische vermeldingen binnen hun respectieve secties.

📈 Analytische statistiek (t-test · RSD · Grubbs · Q-Dixon) ICH Q2

Plak een reeks herhaalde metingen (CSV of één getal per regel). De calculator berekent het gemiddelde, de standaardafwijking en 95% CI, en detecteert uitschieters (Grubbs + Dixon Q).

Scheidingsteken: komma, spatie, tab, nieuwe regel. Minimaal 3 metingen.
📐 Statistische formules
  • x̄ = Σxᵢ / n — rekenkundig gemiddelde
  • s² = Σ(xᵢ - x̄)² / (n-1) — steekproefvariantie
  • s = √s² — standaardafwijking
  • RSD% = (s / x̄) × 100% — relatieve standaardafwijking
  • CI₉₅ = x̄ ± t(0.05, n-1) × s / √n — Student's t
  • G = |xᵢ - x̄| / s — Grubbs-test
  • Q = |xsuspect - xnearest| / |xmax - xmin| — Dixon Q-test

Bron: ICH Q2(R2) Validation of Analytical Procedures · ICH PDF ↗

🧪 Bufferrecept-calculator UNIEK
Literatuur: pKa-waarden uit Goldberg NIST 81 · CRC Handbook 100th ed. · Stoll & Blanchard 1990 (DOI)

Kies een buffer uit de lijst van 20 populaire systemen → voer de streef-pH in → ontvang een exact recept met de af te wegen massa's.

Stap 1: Kies een buffersysteem

📜 Receptgeschiedenis (laatste 10)
🔬 HPLC/GC-methoden (1 metoda)
📄
A quality-by-design optimized LC method for navigating degradation kinetics and quantification of favipiravir in the presence of degradation products and manufacturing impurities
HPLCBMC Chemistry202592% ✓CC-BYResearch method (specificity)
Kolom: C18, 5.0 μm
Fase: mobile phase was adjusted using a bench-top pH-2005 m (SELECTA, Barcelona, Spain)
Detectie: MS
Debiet: 1.00 mL/min
Inj.: 0 μL
Gradient: elution containing ACN and had an average run time of…
Ibrahim A, Farouk M, Alamir S, Salman B, Belal T, El Deeb S, et al. A quality-by-design optimized LC method for navigating degradation kinetics and quantification of favipiravir in the presence of degradation products and manufacturing impurities. BMC Chemistry. 2025;19:244. doi:10.1186/s13065-025-01610-2
🔗 DOI🏠 PMC📚 PubMed📄 PDF
Emergent viruses require effective treatment regimens, and the severe acute respiratory syndrome coronavirus-2 variants are still evolving. Favipiravir has emerged as an effective antiviral medication, especially after its popularity against COVID-2019. Despite its growing popularity, favipiravir has not yet been included in any pharmacopeia, and new dosage forms are being developed to improve its bioavailability for various infections. Therefore, studying its stability and developing methods capable of detecting its impurities and degradation products are essential. An isocratic high-performance liquid chromatography with photodiode array detection method was also designed using the Quality-by-Design approach and validated to determine favipiravir in presence of its hydrolytic degradation products, besides two major manufacturing impurities (namely, 3,6-dichloro pyrazine-2-carbonitrile and 6-fluoro-3-hydroxypyrazine-2-carbonitrile). The separation was achieved using a mobile phase of 25.0 mM phosphate buffer (pH 3.04): acetonitrile (92: 8, v/v) at a 1.0 mL min−1 flow rate. A Hypersil C18-BDS column (5.0 μm, 250.0 × 4.6 mm) was employed at room temperature and detection at 323.0 nm. The method had a linear range (5.0–100.0 µg mL−1) with a limit of detection and quantification of 0.51 and 1.54 µg mL−1. The drug's stability after forced degradation and at different pH levels was explored. Key results proved that FAV is most stable at pH 5.0, with calculated activation energies for the acidic and alkaline degradation processes being 53492.276 and 61896.899 kJ/mole, respectively. Moreover, the analysis of expired favipiravir tablets revealed the presence of the alkaline degradate, thereby demonstrating the efficacy of the method. The proposed method was evaluated for its greenness and blueness to demonstrate its ecological safety and practicality, scoring 0.65 in the Analytical Greenness (AGREE) metric and 85.00 on the Blue Applicability Grade Index (BAGI). It is the fi...
FavipiravirDegradation kineticsStability-indicating HPLCQuality-by-design (QbD)Green chromatographyImpurity profiling
📈 Methodevalidatie (ICH Q2)

Geen validatiegegevens. Neem contact op met de auteur van de methode.

Parameters volgens: ICH Q2(R2) ↗

🔧 Probleemoplossing HPLC/GC
Brede pieken / tailing
Oorzaken: Versleten kolom, verkeerde pH van de mobiele fase, kolomoverbelasting, dood volume
Oplossing: Vervang de kolom, controleer de buffer-pH (±0.2), verlaag het injectievolume, controleer de verbindingen
Basislijndrift
Oorzaken: Verontreinigde mobiele fase, gradiëntproblemen, onstabiele temperatuur
Oplossing: Ontgas de fase, filtreer 0.22 µm, stabiliseer de kolomtemperatuur, spoel het systeem
Geen piek
Oorzaken: Verkeerde golflengte, stof elueert niet, thermische ontleding, verkeerde fase
Oplossing: Controleer λmax, verleng de gradiënt, verlaag de temperatuur, wijzig de mobiele fase
Spookpieken (ghost peaks)
Oorzaken: Systeemverontreiniging, carry-over, verontreinigde vials
Oplossing: Reinig het systeem (MeOH/H₂O), gebruik nieuwe vials, injecteer een blanco
Lage terugvinding
Oorzaken: Adsorptie aan de wanden, onvoldoende extractie, ontleding
Oplossing: Voeg IS toe, silaniseer glaswerk, optimaliseer de extractie, controleer de stabiliteit

Bronnen: Snyder, Kirkland & Dolan ↗, Waters ↗

📊 Validatie van de HPLC-methode (ICH Q2(R1)) PARTIAL

3 metrics need experimental data

Parameter Waarde Eenheid ICH Q2-criterium Status
Lineariteit (R²) geen gegevens unitless R² ≥ 0.999 (≥0.99 voor bioanalytische methoden) —
LOD (S/N = 3:1) geen gegevens ng/mL S/N ≥ 3:1 (laagste detecteerbare concentratie) —
LOQ (S/N = 10:1) geen gegevens ng/mL S/N ≥ 10:1 (LOQ ≥ 3×LOD doorgaans) —
Precisie (RSD intraday, n=6) geen gegevens % RSD RSD ≤ 2% (intraday) / ≤ 3% (interday) voor de API —
Juistheid (recovery, 3 niveaus) geen gegevens % (target 100±2%) Recovery 98-102% (target 100%) —
Lineariteitsbereik geen gegevens bijv. 0.1-100 ng/mL Min. 80-120% van de nominale concentratie —
Selectiviteit/Specificiteit geen gegevens qualitative Geen interferentie — analytpiek volledig gescheiden (Rs ≥ 2.0) —
Robuustheid (robustness) geen gegevens RSD < 2% bij ±5% variatie RSD < 2% bij kleine parametervariaties —
Legend: ✓ PASS ⚠ CAUTION ✗ FAIL — NO_DATA
📚 Wetenschappelijke referenties (Chicago Author-Date) — klik om uit te klappen

Standaarden voor validatie van analytische methoden — 4 onafhankelijke bronnen (ICH + USP + AOAC + Snyder).

  1. International Conference on Harmonisation (ICH). 2005. Validation of Analytical Procedures: Text and Methodology Q2(R1). ICH Expert Working Group. [link ↗] — Gold-standard ICH guideline — accepted by EMA, FDA, MHLW, NMPA
  2. United States Pharmacopeia (USP) Convention. 2024. USP General Chapter <621> Chromatography. USP-NF 2024 ed. USP. [link ↗]
  3. AOAC International. 2016. Appendix F: Guidelines for Standard Method Performance Requirements. AOAC INTERNATIONAL. [link ↗] — AOAC SMPR — alternative to ICH Q2 for food/dietary supplements
  4. Snyder, Lloyd R., Joseph J. Kirkland, and John W. Dolan. 2010. Introduction to Modern Liquid Chromatography. 3rd ed. John Wiley & Sons. ISBN 978-0-470-16754-0. https://doi.org/10.1002/9780470508183 [link ↗] — Industry standard textbook — Chapter 11 covers method validation
  5. Snyder, L. R., J. J. Kirkland, and J. L. Glajch. 1997. Practical HPLC Method Development. 2nd ed. Wiley. ISBN 978-0-471-00703-6. — Classic method-development reference (DryLab heritage).
  6. Rozet, Eric, et al.. 2013. Analysis of recent pharmaceutical regulatory documents on analytical method validation. https://doi.org/10.1016/j.chroma.2007.03.111 [link ↗] — Comparison of FDA / EMA / ICH validation expectations — used for ICH Q2(R1) interpretation.
  7. Heyden, Yvan Vander, et al.. 2009. Robustness of pharmaceutical liquid chromatographic methods. https://doi.org/10.1016/j.jchromb.2008.10.052 [link ↗] — Plackett-Burman design for robustness — basis of ICH Q2 §3.7.
  8. Dong, Michael W.. 2019. HPLC and UHPLC for Practicing Scientists. 2nd ed. Wiley. ISBN 978-1-119-31378-3. https://doi.org/10.1002/9781119313793 [link ↗] — Modern (UHPLC) update of validation chapter — practical RSD/LOD examples.
  9. Meyer, Veronika R.. 2010. Practical High-Performance Liquid Chromatography. 5th ed. Wiley. ISBN 978-0-470-68218-0. — European pharmacopeial perspective — complements USP/AOAC.
  10. Kazakevich, Yuri V., and Rosario LoBrutto, eds.. 2007. HPLC for Pharmaceutical Scientists. Wiley-Interscience. ISBN 978-0-471-68162-4. https://doi.org/10.1002/9780470087954 [link ↗] — Pharma-focused validation case studies (specificity, robustness).
  11. European Medicines Agency (EMA). 2011. Guideline on bioanalytical method validation EMEA/CHMP/EWP/192217/2009. EMA Committee for Medicinal Products for Human Use. [link ↗] — EMA bioanalytical companion to ICH Q2(R1) for clinical samples.

· ⚠ Regelgevende waarschuwingen SVHC/REACH ↑

🔧 HPLC-troubleshooting — beslissingsboom 6 veelvoorkomende problemen

Diagnostiek van de 12 meest voorkomende HPLC-problemen met een beslissingsboom (5 stappen per probleem). Bron: Snyder/Kirkland/Dolan 3rd ed. Chapter 17 + LCGC LC Troubleshooting columns 1989-2024.

Verbrede pieken (broad peaks) medium

Symptoom: Alle pieken op het chromatogram zijn breder dan verwacht (FWHM > 2× normaal)

🔍 Diagnostische boom:
  1. 1. Controleer of alle pieken verbreed zijn of slechts sommige
    → JA: Alle → instrumenteel probleem (kolom of systeem)
    → NEE: Slechts sommige → chemisch probleem (interactie met de kolom voor specifieke analyten)
  2. 2. Verwissel met een testkolom — verdwijnt het probleem?
    → JA: KOLOM versleten — packing beschadigd, void in de eerste mm. Vervang hem.
    → NEE: Probleem in het LC-systeem
  3. 3. Controleer het dode volume (dead volume) — injectielus, verbindingen, detector
    → JA: Lus > 100 µL voor een 4.6 mm kolom of losse verbindingen → vervang de ferrules, kort de leidingen in
    → NEE: Diagnostiek voortzetten
  4. 4. Temperatuurtest: verhoog de kolom van 25°C naar 40°C
    → JA: Smallere pieken → massatransferkinetiek te traag (verhoog T)
    → NEE: Continue
  5. 5. Controleer het debiet t.o.v. het van Deemter-optimum voor deze kolom
    → JA: Optimum voor 4.6mm/5µm = 1.0 mL/min, voor 2.1mm/3µm = 0.4 mL/min
    → NEE: Continue
⚠️ Typische oorzaken:
  • Kolom versleten (>2000 injecties zonder voorkolom)
  • Dood volume van het systeem > 100 µL (verkeerde lus, lange leidingen, losse ferrules)
  • Temperatuur te laag (massatransferkinetiek)
  • Debiet buiten het van Deemter-optimum
  • Monsteroplosmiddel sterker dan mobiele fase A
✓ Oplossingen:
  • ✓ Vervang de kolom (bij >2000 injecties)
  • ✓ Controleer alle verbindingen — houd de leidingen zo kort mogelijk
  • ✓ Verhoog de kolomtemperatuur naar 40°C (als de stof stabiel is)
  • ✓ Verlaag het debiet naar het van Deemter-optimum
  • ✓ Los het monster op in mobiele fase A (niet in puur organisch)
Piektailing (tailing, T > 1.5) high

Symptoom: Pieken hebben een verlengde "staart" aan de late-elutiezijde (asymmetrie T = b/a > 1.5 volgens USP)

🔍 Diagnostische boom:
  1. 1. Bevat de stof basische groepen (amino, pyridine)?
    → JA: Ja → silanolinteracties! Voeg 0.1% TFA of 5-10 mM TEA toe aan mobiele fase A.
    → NEE: Continue
  2. 2. Controleer de pH van de mobiele fase t.o.v. de pKa van de stof
    → JA: pH = pKa ± 1 → gedeeltelijke ionisatie, peak split. Verplaats de pH ≥ 2 eenheden weg van de pKa.
    → NEE: Continue
  3. 3. Controleer de leeftijd van de kolom (>1500 injecties?)
    → JA: Ja → blootgelegde silanolen (column bleed). Vervang door een kolom met hogere endcapping (XTerra, Symmetry).
    → NEE: Continue
  4. 4. Bevat het monster metalen (Fe, Cu uit glazen flesjes)?
    → JA: Ja → gebruik kleurloze type II-flesjes of PFA. Voeg 0.1mM EDTA toe aan het monster.
    → NEE: Continue
⚠️ Typische oorzaken:
  • Silanolinteracties (basische analyt + vrije silanolen van silicagel)
  • pH op de grens van de pKa van de analyt (peak split)
  • Oude kolom (column bleed, hoge silanolactiviteit)
  • Metalen in het monster (chelatie → tailing)
  • Kolomoverbelasting (>50 µg op een 4.6mm kolom)
✓ Oplossingen:
  • ✓ Voeg 0.1% TFA (UV) of 0.1% mierenzuur (LC-MS) toe aan mobiele fase A
  • ✓ Kies een kolom met hoogzuivere endcapping: Waters XBridge BEH, Phenomenex Kinetex
  • ✓ Werk bij een pH ≥ 2 eenheden weg van de pKa
  • ✓ 0.1mM EDTA aan het monster (Fe/Cu-chelatie)
  • ✓ Verlaag het injectievolume naar ≤ 20 µL voor een 4.6mm kolom
Basislijndrift (baseline drift) medium

Symptoom: De basislijn stijgt of daalt systematisch gedurende >5 minuten

🔍 Diagnostische boom:
  1. 1. Gebruik je een gradiënt (B% neemt toe)?
    → JA: Ja → verschillende absorptie van fasen A vs B bij dλ. Oplosmiddelwisseling in de UV-cutoff. Controleer de UV-absorptie van het % organisch.
    → NEE: Verder (isocratisch)
  2. 2. Controleer de kolomtemperatuur — is deze stabiel tot ±0.5°C?
    → JA: Ja (stabiel) → verder
    → NEE: Instabiel → schakel de kolomthermostaat in (>25°C gecontroleerd)
  3. 3. Test: schakel de autosampler uit, laat alleen pomp+kolom+detector draaien
    → JA: De drift verdwijnt → contaminatie van de autosampler (reinig de naald, het septum)
    → NEE: Continue
  4. 4. Controleer de leeftijd van de lamp (D2 voor UV)
    → JA: Ja (>1500 uur) → vervang de lamp
    → NEE: Continue
⚠️ Typische oorzaken:
  • Gradiëntelutie met verschillende UV-cutoff van de fasen
  • Instabiele kolomtemperatuur
  • Autosampler-contaminatie van de naald/septum
  • UV-lamp oud (>1500h)
  • Detector-flowcel vervuild
  • Kolom niet geëquilibreerd (<10 kolomvolumes)
✓ Oplossingen:
  • ✓ Kolom voor-equilibreren gedurende 10-15 kolomvolumes bij 100% A
  • ✓ Kolomthermostaat aan, T 30-40°C stabiel
  • ✓ Reinig de detector-flowcel met een 50:50 ACN:H2O-oplossing
  • ✓ Vervang de D2-lamp indien >1500h
  • ✓ Gebruik baseline subtraction (Chromeleon, native Empower-functie)
Geen piek / verloren piek (no peak) critical

Symptoom: De verwachte analytpiek verschijnt niet op het chromatogram

🔍 Diagnostische boom:
  1. 1. Heeft de injectie daadwerkelijk plaatsgevonden?
    → JA: Controleer het autosampler-log, de pompdruk (moet dalen tijdens de injectie)
    → NEE: Autosampler-probleem → controleer de loop, de naald, het monster in de vial
  2. 2. Zit het monster in de vial (correct volume, niet verdampt)?
    → JA: Continue
    → NEE: Geen monster — opnieuw pipetteren
  3. 3. Monsterstabiliteit — >24h geleden bereid?
    → JA: Ja → degradatie. Bereid een vers monster opnieuw.
    → NEE: Continue
  4. 4. Controleer de detectiegolflengte t.o.v. de λmax van de stof
    → JA: Detectie bij λ komt NIET overeen met λmax → geen signaal. Scan DAD 200-400nm.
    → NEE: Continue
  5. 5. Test: injecteer een zuivere standaard (van bekende concentratie, vers)
    → JA: De standaard geeft een piek → probleem met het monster (matrix, derivatisering)
    → NEE: Ook geen piek met de standaard → systeemprobleem (kolom, fase, gradiënt)
⚠️ Typische oorzaken:
  • Monster niet uit de vial genomen (autosampler-bug)
  • Monster gedegradeerd (>24h pH/temp/licht)
  • Detectie bij de verkeerde golflengte
  • Verkeerde mobiele fase (bijv. vergeten TFA)
  • Kolom omgekeerd / verkeerde stationaire fase
  • De stof elueert op het front (V0) → niet vastgehouden, niet zichtbaar
✓ Oplossingen:
  • ✓ Bereid een vers monster opnieuw volgens het exacte protocol
  • ✓ UV-Vis DAD-scan 200-400nm + zoeken naar λmax
  • ✓ Controleer de samenstelling van de mobiele fase — is TFA toegevoegd?
  • ✓ Test de omgekeerde kolomrichting (voorzichtig!)
  • ✓ Voor retentie <1 min — verlaag de % B, MeOH in plaats van ACN
  • ✓ Controleer de tabel "expected_rt" in wp_molgod_hplc_methods
Druk te hoog (pressure too high) critical

Symptoom: Pompdruk > 80% van het kolommaximum of systeem-shutdown met high-pressure error

🔍 Diagnostische boom:
  1. 1. Controleer of de kolom correct is aangesloten (richting van de pijl)
    → JA: OK
    → NEE: Kolom omgekeerd → draai om (nooit "achterstevoren" gebruiken)
  2. 2. Test: verwijder de kolom uit het systeem, laat alleen pomp+detector draaien
    → JA: Druk daalt naar <50 bar → probleem in de kolom (verstopt)
    → NEE: Druk blijft hoog → in-line filter verstopt, frit vervuild
  3. 3. Controleer het pre-kolomfilter (in-line frit)
    → JA: Vervuild en bruin → vervangen
    → NEE: Continue
  4. 4. Spoel de kolom terug met 50:50 ACN:H2O zonder de kolom — verdwijnt het?
    → JA: Deeltjes vast in de eerste mm — een flush van 30 min kan het herstellen
    → NEE: Vervang de kolom
⚠️ Typische oorzaken:
  • In-line filter (frit) verstopt met deeltjes
  • Buffer salting-out (precipitatie bij hoog %B)
  • Monster bevat zwevende deeltjes (filtreer 0.22 µm vóór injectie)
  • Kolom verstopt (column bed compaction)
  • Gradiënt met bufferfase + veel organisch → zoutprecipitatie
✓ Oplossingen:
  • ✓ Filtreer het monster ALTIJD door 0.22 µm PVDF vóór injectie
  • ✓ Vervang het in-line filter elke 100 injecties (of wanneer de druk >20% stijgt)
  • ✓ Gebruik GEEN >20mM fosfaatbuffer + >70% ACN (het zout slaat neer)
  • ✓ Spoel de kolom 30 min met 50:50 ACN:H2O in de omgekeerde richting (wanneer de fabrikant dit toestaat)
  • ✓ Pre-kolom 4×3mm ter bescherming van de hoofdkolom
Spookpieken (ghost peaks) high

Symptoom: Onverklaarde pieken op het chromatogram die afwezig zijn in de kalibratie

🔍 Diagnostische boom:
  1. 1. Test: blanco injectie (zuiver monsteroplosmiddel)
    → JA: Er verschijnt een spookpiek → contaminatie van het systeem of de eluenten
    → NEE: Verschijnt alleen bij het monster → matrix
  2. 2. Groeit de spookpiek met de gradiënt (elueert bij hoog %B)?
    → JA: Ja → overladen kolom of sterk vastgehouden uit een vorige run
    → NEE: Onafhankelijk van de gradiënt → autosampler carryover
  3. 3. Increase carryover wash (between injections)
    → JA: Helpt → carryover was de oorzaak. Sterker wasprotocol.
    → NEE: Continue
  4. 4. Injectie van zuiver water — is er een piek?
    → JA: Ja → contaminatie van de waterbron (organische stoffen uit het DI-systeem)
    → NEE: Continue
⚠️ Typische oorzaken:
  • Carryover in de autosampler-naald/loop
  • Contaminatie van het eluens (zelfs HPLC-grade)
  • Sterk vastgehouden componenten uit vorige runs
  • Plastic in de vials (ftalaten, PEG uit de doppen)
  • DI-water onvoldoende gezuiverd
✓ Oplossingen:
  • ✓ Versterk het wasprotocol: 100% B → 100% A → 50:50 (3 cycli)
  • ✓ Sterke was: 100% DMSO of 100% MeOH vóór de kalibratie
  • ✓ Filtreer de eluenten door 0.22 µm PTFE bij twijfel
  • ✓ Gebruik amberkleurig glas + doppen met Teflon-coating voor monsters
  • ✓ Periodieke gradiëntramp naar 100% B gedurende 10 min (clean-out)
📚 Wetenschappelijke referenties (Chicago Author-Date) — klik om uit te klappen
  1. Snyder, Lloyd R., Joseph J. Kirkland, and John W. Dolan. 2010. Introduction to Modern Liquid Chromatography. 3rd ed. John Wiley & Sons. Chapter 17 (Troubleshooting) pp. 559-616. ISBN 978-0-470-16754-0. https://doi.org/10.1002/9780470508183 [link ↗]
  2. Dolan, John W.. 2014. LC Troubleshooting (monthly column 1989-2024). LCGC North America. [link ↗] — John Dolan 35-letnia seria miesięcznych artykułów problemowych
  3. Kromidas, Stavros. 2017. HPLC Made to Measure: A Practical Handbook for Optimization. 2nd ed. Wiley-VCH. ISBN 978-3-527-31377-1. — Praktyczny przewodnik problem-solving dla labs analitycznych
  4. Dolan, John W.. 2013. When to Modify Method Conditions. 192-199. [link ↗] — Decision flow for changing flow rate / temperature / %B vs swapping columns.
  5. Dong, Michael W.. 2019. HPLC and UHPLC for Practicing Scientists. 2nd ed. Wiley. ISBN 978-1-119-31378-3. https://doi.org/10.1002/9781119313793 [link ↗] — Chapter 9 covers troubleshooting modern UHPLC systems (sub-2 µm particles).
  6. Meyer, Veronika R.. 2010. Practical High-Performance Liquid Chromatography. 5th ed. Wiley. ISBN 978-0-470-68218-0. — Solid step-by-step problem isolation chapter (eluents, columns, instruments).
  7. Snyder, L. R., J. J. Kirkland, and J. L. Glajch. 1997. Practical HPLC Method Development. 2nd ed. Wiley. ISBN 978-0-471-00703-6. — Method-development companion volume with troubleshooting cross-refs.
  8. Carr, Peter W.. 2009. The new physical chemistry of HPLC. 1764-1772. https://doi.org/10.1016/j.chroma.2008.11.094 [link ↗] — Theoretical basis for diagnosing efficiency losses (mass-transfer, eddy diffusion).
  9. Heyden, Yvan Vander, et al.. 2009. Robustness of pharmaceutical liquid chromatographic methods. 2120-2129. https://doi.org/10.1016/j.jchromb.2008.10.052 [link ↗] — How to diagnose method failures vs. system failures (Plackett-Burman).
  10. Engelhardt, Heinz. 2014. 100 Years of Chromatography. 2nd ed. Wiley-VCH. ISBN 978-3-527-33473-5. — Historical context for ghost-peak phenomenology (silica chemistry).
  11. Stoll, Dwight R., and Peter W. Carr. 2017. Two-Dimensional Liquid Chromatography: A State of the Art Tutorial. 519-531. https://doi.org/10.1021/acs.analchem.6b03506 [link ↗]
  12. Carr, Peter W.. 2009. The new physical chemistry of HPLC. 1764-1772. https://doi.org/10.1016/j.chroma.2008.11.094 [link ↗]
  13. Wu, Naijun, and Anton M. Clausen. 2007. Fundamental and practical aspects of ultrahigh pressure liquid chromatography for fast separations. 1167-1182. https://doi.org/10.1002/jssc.200700026 [link ↗]
  14. Engelhardt, Heinz. 2014. 100 Years of Chromatography. 2nd ed. Wiley-VCH. ISBN 978-3-527-33473-5.
  15. Vivó-Truyols, Gabriel, and Hans-Gerd Janssen. 2010. Probabilistic approach to peak deconvolution in chromatography. 8525-8531. https://doi.org/10.1021/ac101742z [link ↗]
🧪 Oplosbaarheid en compatibiliteit met oplosmiddelen MolGod_SOLUB_1
Molecuul
Boric Acid
Formule
BH3O3
logP
—
Massa (g/mol)
61.84
Polariteit
—

⚠️ GC-schatting (Hoftyzer–Van Krevelen). Geen HSP-literatuurgegevens voor deze CAS — nauwkeurigheid ±2 MPa½. Experimenteel verifiëren.

Oplosmiddel Compat. Ra Visueel GC-MS HPLC Toepassingen Referenties
Water (H₂O)− Slecht33.3
✗ NieA (aqueous) (RP)
buffercelkweekanalytischextractie (hydrofiel)
Ethanol (EtOH)~ Gem.11.6
✗ NieA/B modifier (RP/NP)
extractiespectroscopie (UV-Vis)syntheseHPLC-modifier
Methanol (MeOH)− Slecht13.7
✗ NieA/B (RP) (RP)
HPLC (eluent)LC-MSKarl FischerUV-transparent do 205 nm
Acetone~ Gem.8.1
✗ NieB modifier (NP)
GC headspacekristallisatieontvettingsynthese
Acetonitrile (ACN)− Slecht12.3
✗ NieB (RP) (RP)
HPLC-eluens (gouden standaard)LC-MS (wolny cut-off UV 190 nm)peptideanalyse
DMSO− Slecht14.9
✗ NieN/A (N/A)
NMR (d6-DMSO)celbiologie (cryopreservatie)medicijnafgiftesynthese
THF~ Gem.10.4
✗ NieB (NP) (NP)
GPC/SEC (polymeeranalyse)Grignard-syntheseorganometaalverbindingen
DCM (CH₂Cl₂)− Slecht13.4
✓ TakB (NP) (NP)
extractieNP-HPLCGC-MSkristallisatie (antisolvent)
Chloroform (CHCl₃)− Slecht13.8
✓ TakN/A (toxic) (N/A)
NMR (CDCl3)lipide-extractie (Folch-methode)NP-TLC
Hexane− Slecht14.9
✓ TakA (NP) (NP)
NP-HPLColie-extractie (lipiden)GC-MSTLC (NP)
Toluene− Slecht16.5
✓ TakB (NP) (NP)
NMR (d8-toluene)syntheseDean-Stark azeotrope droging
📚 Wetenschappelijke referenties voor oplosmiddelen (Chicago Author-Date) — klik om uit te vouwen

11 oplosmiddelen × 5 onafhankelijke wetenschappelijke bronnen (NIST/CRC/IARC/Hansen/Reichardt/Smallwood/Wypych/Armarego/Snyder/GESTIS). 55+ volledige citaties hieronder.

Water (H₂O)
  1. NIST — NIST Chemistry WebBook — Water (CAS 7732-18-5)
  2. CRC — CRC Handbook of Chemistry and Physics, 104th ed., Sec. 8 (Properties of Water)
  3. IAPWS — IAPWS Release on Static Dielectric Constant of Water
  4. Reichardt 2011 — Solvents and Solvent Effects in Organic Chemistry
  5. GESTIS — GESTIS Substance Database — Water
Ethanol (EtOH)
  1. NIST — NIST Chemistry WebBook — Ethanol (CAS 64-17-5)
  2. CRC — CRC Handbook — Ethanol physical constants
  3. Snyder & Kirkland — Modern Liquid Chromatography — Ethanol eluotropic
  4. Smallwood — Handbook of Organic Solvent Properties — Ethanol
  5. GESTIS — GESTIS Substance Database — Ethanol
Methanol (MeOH)
  1. NIST — NIST Chemistry WebBook — Methanol (CAS 67-56-1)
  2. CRC — CRC Handbook — Methanol physical constants
  3. Snyder & Kirkland — Modern Liquid Chromatography — MeOH eluotropic, eo=0.95
  4. GESTIS — GESTIS Substance Database — Methanol
Acetone
  1. NIST — NIST Chemistry WebBook — Acetone (CAS 67-64-1)
  2. CRC — CRC Handbook — Acetone physical & thermodynamic constants
  3. Hansen 2007 — Hansen Solubility Parameters — Acetone (dD=15.5, dP=10.4, dH=7.0)
  4. Smallwood — Handbook of Organic Solvent Properties — Acetone
  5. GESTIS — GESTIS Substance Database — Acetone
Acetonitrile (ACN)
  1. NIST — NIST Chemistry WebBook — Acetonitrile (CAS 75-05-8)
  2. CRC — CRC Handbook — Acetonitrile constants
  3. Snyder & Kirkland — Modern Liquid Chromatography — ACN gold-standard HPLC eluent
  4. Reichardt 2011 — Solvents and Solvent Effects — ACN dipolar aprotic
  5. GESTIS — GESTIS Substance Database — Acetonitrile
DMSO
  1. NIST — NIST Chemistry WebBook — DMSO (CAS 67-68-5)
  2. Wypych 2019 — Handbook of Solvents Vol. 1 — DMSO comprehensive properties
  3. Hansen 2007 — HSP — DMSO (dD=18.4, dP=16.4, dH=10.2)
  4. Reichardt 2011 — Solvents and Solvent Effects — DMSO E_T(30)=45.1, dipolar aprotic
  5. GESTIS — GESTIS Substance Database — DMSO
THF
  1. NIST — NIST Chemistry WebBook — THF (CAS 109-99-9)
  2. Armarego 2009 — Purification of Laboratory Chemicals — THF drying & peroxide test
  3. Hansen 2007 — Hansen Solubility Parameters — THF (dD=16.8, dP=5.7, dH=8.0)
  4. Smallwood — Handbook of Organic Solvent Properties — THF
  5. GESTIS — GESTIS Substance Database — Tetrahydrofuran
DCM (CH₂Cl₂)
  1. NIST — NIST Chemistry WebBook — Dichloromethane (CAS 75-09-2)
  2. IARC 71 — IARC Monograph 71 — DCM (Group 2A carcinogen)
  3. Hansen 2007 — Hansen Solubility Parameters — DCM (dD=18.2, dP=6.3, dH=6.1)
  4. Reichardt 2011 — Solvents and Solvent Effects — DCM polarity index
  5. GESTIS — GESTIS Substance Database — Dichloromethane
Chloroform (CHCl₃)
  1. NIST — NIST Chemistry WebBook — Chloroform (CAS 67-66-3)
  2. IARC 73 — IARC Monograph 73 — Chloroform (Group 2B carcinogen)
  3. Hansen 2007 — Hansen Solubility Parameters — CHCl3 (dD=17.8, dP=3.1, dH=5.7)
  4. Reichardt 2011 — Solvents and Solvent Effects — CHCl3 H-bond donor strength
  5. GESTIS — GESTIS Substance Database — Chloroform
n-Hexane
  1. NIST — NIST Chemistry WebBook — n-Hexane (CAS 110-54-3)
  2. ATSDR n-Hexane — ATSDR Toxicological Profile for n-Hexane — neuropatia obwodowa (n-Heksan NIE jest kancerogenem IARC)
  3. Hansen 2007 — Hansen Solubility Parameters — n-Hexane (dD=14.9, dP=0, dH=0)
  4. Snyder & Kirkland — Modern Liquid Chromatography — n-Hexane NP standard, eo=0.00
  5. GESTIS — GESTIS Substance Database — n-Hexane
Toluene
  1. NIST — NIST Chemistry WebBook — Toluene (CAS 108-88-3)
  2. IARC 71 — IARC Monograph 71 — Toluene
  3. Hansen 2007 — Hansen Solubility Parameters — Toluene (dD=18.0, dP=1.4, dH=2.0)
  4. Smallwood — Handbook of Organic Solvent Properties — Toluene
  5. GESTIS — GESTIS Substance Database — Toluene
Oplosbaarheidstheorie (toegepast bij de voorspelling van compatibiliteit):
  1. Yalkowsky, Samuel H., and Shri C. Valvani. 1980. "Solubility and Partitioning I: Solubility of Nonelectrolytes in Water." Journal of Pharmaceutical Sciences 69 (8): 912–922. https://doi.org/10.1002/jps.2600690814 — General Solubility Equation (GSE): logS = 0.5 − logP − 0.01(MP−25).
  2. Hansen, Charles M. 2007. Hansen Solubility Parameters: A User's Handbook. 2nd ed. CRC Press. https://doi.org/10.1201/9781420006834 — HSP-triplet (dD, dP, dH) + Ra-formule.
  3. Stefanis, E., and C. Panayiotou. 2008. "Prediction of Hansen Solubility Parameters with a New Group-Contribution Method." Int J Thermophys 29: 568–585. https://doi.org/10.1007/s10765-008-0415-z
  4. Reichardt, Christian, and Thomas Welton. 2011. Solvents and Solvent Effects in Organic Chemistry. 4th ed. Wiley-VCH. https://doi.org/10.1002/9783527632220 — E_T(30) polarity scale, solwatochromia.
  5. Snyder, Lloyd R., Joseph J. Kirkland, and John W. Dolan. 2010. Introduction to Modern Liquid Chromatography. 3rd ed. Wiley. https://doi.org/10.1002/9780470508183 — Eluotropic series, polarity index.
  6. Van Krevelen, D. W., and K. Te Nijenhuis. 2009. Properties of Polymers. 4th ed. Elsevier. https://doi.org/10.1016/B978-0-08-054819-7.X0001-5 — Hoftyzer–Van Krevelen group contribution dla dD/dP/dH z SMILES.
  7. Marcus, Yizhak. 1998. The Properties of Solvents. Wiley Series in Solution Chemistry, Vol. 4. ISBN 9780471983699 — Volledige tabellarische set van 250+ oplosmiddelen (ε, μ, doniciteit, acceptorgetallen).
  8. PubChem Compound Database — CAS 10043-35-3 lookup ↗ — logP (XLogP3), water solubility experimental + predicted.

Volledige bibliografie in het accordeon REFERENTIES (onderaan de pagina) — Chicago Manual of Style 17th ed., Author-Date.

📚 Technische FAQ — Boric Acid (5) MolGod_TECHFAQ_1
❓ Jak przygotować roztwór standardowy kwasu borowego o stężeniu 0.1 M?
Aby przygotować 1 litr roztworu standardowego kwasu borowego (BH3O3) o stężeniu 0.1 M, należy odważyć masę substancji zgodnie z obliczeniem: n = C × V × M, gdzie C = 0.1 mol/L, V = 1 L, M = 61.84 g/mol. Masa kwasu borowego = 0.1 mol/L × 1 L × 61.84 g/mol = 6.184 g. Rozpuścić 6.184 g kwasu borowego w wodzie destylowanej i uzupełnić do objętości 1 litra.
Nuttig?
❓ Jak przechowywać kwas borowy, aby zachować jego stabilność?
Kwas borowy należy przechowywać w szczelnie zamkniętych pojemnikach, w temperaturze pokojowej (15-25°C), z dala od światła słonecznego i źródeł ciepła. Wilgotność powietrza nie powinna przekraczać 60%, aby uniknąć absorpcji wilgoci z otoczenia.
Nuttig?
❓ Jaka metoda analityczna jest odpowiednia do oznaczania stężenia kwasu borowego w roztworze?
Dla kwasu borowego o masie molowej 61.84 g/mol i logP (wartość nieokreślona, ale zakładając niską lipofilność) zalecana jest metoda HPLC (High-Performance Liquid Chromatography) z detektorem UV. Alternatywnie, można użyć miareczkowania titracją kwasowo-zasadową z fenoloftaleiną jako wskaźnikiem.
Nuttig?
❓ Jakie są potencjalne niezgodności chemiczne kwasu borowego?
Kwas borowy może reagować z silnymi utleniaczami (np. nadtlenkiem wodoru) oraz zasadami (tworząc borany). Należy unikać kontaktu z kwasami silniejszymi od niego, które mogą go zneutralizować. Przechowywać oddzielnie od substancji redukujących i mocnych kwasów.
Nuttig?
❓ W jakich praktycznych zastosowaniach laboratoryjnych wykorzystuje się kwas borowy?
Kwas borowy jest stosowany jako środek buforujący w zakresie pH 8-9, konserwant w preparatach biologicznych oraz w syntezie organoboranów. W laboratoriach analitycznych używa się go do przygotowania roztworów standardowych i jako odczynnik w miareczkowaniu.
Nuttig?
🧮 Laboratoriumcalculators (8) MolGod_LABCALC_1
Verdunning (C₁V₁=C₂V₂)
Molariteit (M=n/V)
pH-buffer (Henderson-Hasselbalch)
Beer-Lambert (A=εcl)
Massa → Mol
Concentratie % → M
ppm → mg/L
Temperatuur C↔F↔K

Geverifieerde formules: IUPAC Gold Book ↗, DOI ↗

📊 Spectroscopische spectradatabases MolGod_SPECDB_3
📋 Generator van laboratoriumprotocollen MolGod_PROTOCOL_1

Protocol gegenereerd op basis van: GHS SDS, Aldrich Lab Guide ↗

🏷️ Etikettengenerator (QR) MolGod_LABEL_1
Boorzuur• BORIC ACID / Orthoboric acid• CAS: 10043-35-3• EC: 233-139-2• Formule: BH3O3• Massa: 61.84 g/molGEVAARGHS-GEVARENAANDUIDINGEN:H360: Kan de vruchtbaarheid of het ongeboren kind schaden.P203: Vóór gebruik alle veiligheidsinstructies raadplegen, lezen en opvolgen.Uitsluitend voor laboratoriumgebruik!DH ScientificScience first. Commerce as consequence.Batchnr.: Nettogewicht: Prod.:
ADMET — farmacologisch profiel
ADMET-voorspellingen worden geladen…
🧪 Assistent voor bereiding van oplossingen (Smart Prep) MolGod_PREP_2

Voer in wat u wilt bereiden — ik genereer een SOP

Voorbeelden hieronder — klik om in te voegen:
Voorgedefinieerde recepten:
📚 Overzicht van de wetenschappelijke literatuur — CAS 10043-35-3MolGod_LITHUB_MAIN
⭐ Belangrijkste bevindingen (wetenschappelijke literatuur) 4 publicaties
🏆 CAS 10043-35-3 — multi-criteria ranking (W12): 30% citaties · 20% recentheid · 20% onderwerp · 15% historisch · 15% open access.
  1. #1
    (1987) · National Toxicology Program technical report series
    Waarom het belangrijk is: Geselecteerd op basis van een multicriteria-score (citaties + recentheid + onderwerp + historisch + OA).
    SCORE 3.61 Mechanisme Citaties: 15 PubMed ↗
  2. #2
    Substance name: Boric acid EC number: 233-139-2 (234-343-4) CAS number: 10043-35-3 (11113-50-1) MEMBER STATE COMMITTEE DRAFT SUPPORT DOCUMENT FOR IDENTIFICATION OF BORIC ACID AS A SUBSTANCE OF VERY HIGH CONCERN BECAUSE OF ITS CMR PROPERTIES
    (2010)
    Waarom het belangrijk is: Geselecteerd op basis van een multicriteria-score (citaties + recentheid + onderwerp + historisch + OA).
    SCORE 2.71 Mechanisme Citaties: 7
  3. #3
    (2012) · Sax's Dangerous Properties of Industrial Materials
    Waarom het belangrijk is: Geselecteerd op basis van een multicriteria-score (citaties + recentheid + onderwerp + historisch + OA).
    SCORE 0.6 Mechanisme DOI ↗
  4. #4
    (2004) · Sax's Dangerous Properties of Industrial Materials
    Waarom het belangrijk is: Geselecteerd op basis van een multicriteria-score (citaties + recentheid + onderwerp + historisch + OA).
    SCORE 0 Mechanisme DOI ↗
📈 HPLC-gradiënt — optimalisator (LSS) SJABLOON

logP onbekend — PubChem heeft geen XLogP-waarde geretourneerd. De onderstaande gradiënt is een generiek sjabloon 5–95% MeCN/H2O in 15 min; controleer de parameters vóór gebruik.

⚠ logP niet beschikbaar. PubChem heeft geen XLogP3-eigenschap voor dit CAS-nummer geretourneerd. De onderstaande gradiëntwaarden zijn een generiek sjabloon — geen op de verbinding aangepaste LSS-fit.
  • Kolom: C18
  • Buffer: phosphate
  • Debiet: 1 mL/min
  • logP: logP niet beschikbaar
  • Ramp: 21% → 95% B, 15 min
  • Totale analysetijd: 28 min
t (min) %A %B flow (mL/min) Opmerking
0 79 21 1 start (evenwicht)
2 79 21 1 einde van de initiële hold
17 5 95 1 einde van de LSS-ramp
22 5 95 1 kolomspoeling
23 79 21 1 terug naar init
28 79 21 1 her-equilibratie
📚 Wetenschappelijke referenties (Chicago Author-Date)
  1. Snyder, Lloyd R., John W. Dolan, and Joseph J. Kirkland. 2010. Introduction to Modern Liquid Chromatography. Wiley. — Chapter 9 — gradient elution, LSS theory (cited as Snyder et al. 2010 in tool description).
  2. Schoenmakers, Peter J. 1986. Optimization of Chromatographic Selectivity: A Guide to Method Development. Elsevier. — Numerical optimization of gradient programs.
  3. Snyder, L. R., and J. W. Dolan. 2007. High-Performance Gradient Elution: The Practical Application of the Linear-Solvent-Strength Model. Wiley. — Foundational LSS reference for the %B_init = 5 + 8·logP heuristic implemented here.
  4. Nikitas, Pavlos, and Adrian Pappa-Louisi. 2009. "Retention models for isocratic and gradient elution in reversed-phase liquid chromatography." Journal of Chromatography A 1216: 1737-1755. [DOI ↗] — Modern review of gradient retention models — basis for non-LSS extensions.
  5. Carr, Peter W.. 2009. "The new physical chemistry of HPLC." Journal of Chromatography A 1216: 1764-1772. [DOI ↗]
  6. Dong, Michael W. 2019. HPLC and UHPLC for Practicing Scientists. Wiley. https://doi.org/10.1002/9781119313793. — Modern UHPLC gradient programming, sub-2 µm scaling rules.
  7. Wu, Naijun, and Anton M. Clausen. 2007. "Fundamental and practical aspects of ultrahigh pressure liquid chromatography for fast separations." Journal of Separation Science 30: 1167-1182. [DOI ↗]
  8. Stoll, Dwight R., and Peter W. Carr. 2017. "Two-Dimensional Liquid Chromatography: A State of the Art Tutorial." Analytical Chemistry 89: 519-531. [DOI ↗] — Reference for orthogonal gradient design (2D-LC second dimension).
  9. Dolan, John W.. 2013. "When to Modify Method Conditions." LCGC North America 31: 192-199.
  10. Meyer, Veronika R. 2010. Practical High-Performance Liquid Chromatography. Wiley. — Chapter 7 — practical gradient design with isokratyczny scouting.
  11. Stoll, Dwight R., and Peter W. Carr. 2017. "Two-Dimensional Liquid Chromatography: A State of the Art Tutorial." Analytical Chemistry 89: 519-531. [DOI ↗]
  12. Carr, Peter W.. 2009. "The new physical chemistry of HPLC." Journal of Chromatography A 1216: 1764-1772. [DOI ↗]
  13. Wu, Naijun, and Anton M. Clausen. 2007. "Fundamental and practical aspects of ultrahigh pressure liquid chromatography for fast separations." Journal of Separation Science 30: 1167-1182. [DOI ↗]
  14. Engelhardt, Heinz. 2014. 100 Years of Chromatography. Wiley-VCH.
  15. Vivó-Truyols, Gabriel, and Hans-Gerd Janssen. 2010. "Probabilistic approach to peak deconvolution in chromatography." Analytical Chemistry 82: 8525-8531. [DOI ↗]

REST: /wp-json/molgod/v1/hplc/gradient/10043-35-3

📐 HPLC-pieksymmetriecalculator (USP Tf / As)

Bereken de USP-tailingfactor (Tf) en de asymmetrie (As) uit de piekhalfbreedtes. Voer a (linker halfbreedte) en b (rechter halfbreedte) in, gemeten op 5% of 10% van de piekhoogte.

📚 Referenties (Chicago Author-Date)
  1. USP General Chapter <621>. 2024. "Chromatography." United States Pharmacopeial Convention. [link ↗] — Defines USP Tailing Factor T = (a+b)/(2a) measured at 5% peak height.
  2. International Council for Harmonisation (ICH). 2023. "Validation of Analytical Procedures Q2(R2)." ICH Expert Working Group. [link ↗] — Tailing factor is a system suitability parameter (Section 6).
  3. Foley, Joe P., and John G. Dorsey. 1983. "Equations for calculation of chromatographic figures of merit for ideal and skewed peaks." Analytical Chemistry 55: 730-737 https://doi.org/10.1021/ac00255a033 [link ↗] — Original asymmetry factor As = b/a at 10% height (Foley & Dorsey 1983).
  4. Snyder, Lloyd R., Joseph J. Kirkland, and John W. Dolan. 2010. "Introduction to Modern Liquid Chromatography." Wiley. https://doi.org/10.1002/9780470508183 [link ↗] — Chapter 2.4 — peak shape diagnostics and remedies.
  5. Dolan, John W.. 2003. "Peak tailing and resolution." LCGC North America 21: 610-614 [link ↗] — How tailing factor degrades effective resolution.
  6. Vivó-Truyols, Gabriel, and Hans-Gerd Janssen. 2010. "Probabilistic approach to peak deconvolution in chromatography." Analytical Chemistry 82: 8525-8531 https://doi.org/10.1021/ac101742z [link ↗] — Modern numerical deconvolution for asymmetric peaks.
  7. Kromidas, Stavros. 2017. "HPLC Made to Measure: A Practical Handbook for Optimization." Wiley-VCH. — Practical Tf and As thresholds for routine QC.
  8. Dong, Michael W.. 2019. "HPLC and UHPLC for Practicing Scientists." Wiley. https://doi.org/10.1002/9781119313793 [link ↗]
  9. Meyer, Veronika R.. 2010. "Practical High-Performance Liquid Chromatography." Wiley.
  10. Heyden, Yvan Vander, et al.. 2009. "Robustness of pharmaceutical liquid chromatographic methods." Journal of Chromatography B 877: 2120-2129 https://doi.org/10.1016/j.jchromb.2008.10.052 [link ↗]
  11. Stoll, Dwight R., and Peter W. Carr. 2017. "Two-Dimensional Liquid Chromatography: A State of the Art Tutorial." Analytical Chemistry 89: 519-531 https://doi.org/10.1021/acs.analchem.6b03506 [link ↗]
  12. Carr, Peter W.. 2009. "The new physical chemistry of HPLC." Journal of Chromatography A 1216: 1764-1772 https://doi.org/10.1016/j.chroma.2008.11.094 [link ↗]
  13. Wu, Naijun, and Anton M. Clausen. 2007. "Fundamental and practical aspects of ultrahigh pressure liquid chromatography for fast separations." Journal of Separation Science 30: 1167-1182 https://doi.org/10.1002/jssc.200700026 [link ↗]
  14. Engelhardt, Heinz. 2014. "100 Years of Chromatography." Wiley-VCH.
  15. Vivó-Truyols, Gabriel, and Hans-Gerd Janssen. 2010. "Probabilistic approach to peak deconvolution in chromatography." Analytical Chemistry 82: 8525-8531 https://doi.org/10.1021/ac101742z [link ↗]
📊 Calculator voor resolutie en schotelgetal (Rs, N, H)

Bereken de resolutie Rs, het aantal theoretische schotels N en de HETP (H) voor een paar HPLC-pieken. Voer de retentietijden, piekbreedtes (op 50% of aan de basis) en de kolomlengte in.

📚 Referenties (Chicago Author-Date)
  1. Snyder, Lloyd R., Joseph J. Kirkland, and John W. Dolan. 2010. "Introduction to Modern Liquid Chromatography." 3rd ed. John Wiley & Sons. ISBN 978-0-470-16754-0. https://doi.org/10.1002/9780470508183 [link ↗] — Chapter 2 covers resolution, plate count and HETP fundamentals (Snyder et al. 2010).
  2. USP General Chapter <621>. 2024. "Chromatography." USP-NF 2024 ed. United States Pharmacopeial Convention. [link ↗] — Defines Rs >= 1.5 acceptance criterion and N calculation methods.
  3. Dolan, John W.. 2003. "How much resolution is enough?." LCGC North America 21: 350-353 [link ↗] — Practical guidance on Rs targets for routine method development.
  4. Van Deemter, J. J., F. J. Zuiderweg, and A. Klinkenberg. 1956. "Longitudinal diffusion and resistance to mass transfer as causes of nonideality in chromatography." Chemical Engineering Science 5: 271-289 https://doi.org/10.1016/0009-2509(56)80003-1 [link ↗] — Origin of N = 5.54·(tr/w0.5)² half-height plate count formulation.
  5. Giddings, J. Calvin. 1965. "Dynamics of Chromatography, Part I: Principles and Theory." Marcel Dekker. ISBN 978-0-8247-1357-7. — Resolution equation Rs = (1/4)·√N·(α-1)/α·k/(1+k) (master equation).
  6. Foley, Joe P., and John G. Dorsey. 1983. "Equations for calculation of chromatographic figures of merit for ideal and skewed peaks." Analytical Chemistry 55: 730-737 https://doi.org/10.1021/ac00255a033 [link ↗] — Skewed-peak corrections to apparent N.
  7. Knox, John H.. 1977. "Practical aspects of LC theory." Journal of Chromatographic Science 15: 352-364 https://doi.org/10.1093/chromsci/15.9.352 [link ↗]
  8. Carr, Peter W.. 2009. "The new physical chemistry of HPLC." Journal of Chromatography A 1216: 1764-1772 https://doi.org/10.1016/j.chroma.2008.11.094 [link ↗]
  9. Dong, Michael W.. 2019. "HPLC and UHPLC for Practicing Scientists." 2nd ed. Wiley. ISBN 978-1-119-31378-3. https://doi.org/10.1002/9781119313793 [link ↗]
  10. Meyer, Veronika R.. 2010. "Practical High-Performance Liquid Chromatography." 5th ed. Wiley. ISBN 978-0-470-68218-0.
  11. Stoll, Dwight R., and Peter W. Carr. 2017. "Two-Dimensional Liquid Chromatography: A State of the Art Tutorial." Analytical Chemistry 89: 519-531 https://doi.org/10.1021/acs.analchem.6b03506 [link ↗]
  12. Carr, Peter W.. 2009. "The new physical chemistry of HPLC." Journal of Chromatography A 1216: 1764-1772 https://doi.org/10.1016/j.chroma.2008.11.094 [link ↗]
  13. Wu, Naijun, and Anton M. Clausen. 2007. "Fundamental and practical aspects of ultrahigh pressure liquid chromatography for fast separations." Journal of Separation Science 30: 1167-1182 https://doi.org/10.1002/jssc.200700026 [link ↗]
  14. Engelhardt, Heinz. 2014. "100 Years of Chromatography." 2nd ed. Wiley-VCH. ISBN 978-3-527-33473-5.
  15. Vivó-Truyols, Gabriel, and Hans-Gerd Janssen. 2010. "Probabilistic approach to peak deconvolution in chromatography." Analytical Chemistry 82: 8525-8531 https://doi.org/10.1021/ac101742z [link ↗]

Related products

🧪 System Suitability — live calculator (USP <621>)

Voer gegevens van 5-6 injecties in (areas, tr, tailing, plates) — de calculator berekent %RSD, gemiddelden en controleert de conformiteit met USP <621>. Je kunt CSV plakken (door komma's gescheiden) of afzonderlijke waarden bewerken.

📚 Referenties (Chicago Author-Date)
  1. USP General Chapter <621>. 2024. "Chromatography (System Suitability section)." USP-NF 2024 ed. United States Pharmacopeial Convention. [link ↗] — Defines RSD area < 2%, tailing < 2.0, N > 2000 acceptance criteria.
  2. International Council for Harmonisation (ICH). 2023. "Validation of Analytical Procedures Q2(R2)." ICH Expert Working Group. [link ↗] — Section 5.4 — system suitability is part of method validation.
  3. US Food and Drug Administration (FDA). 2018. "Reviewer Guidance: Validation of Chromatographic Methods." US Food and Drug Administration. [link ↗] — CDER reviewer perspective on chromatographic validation expectations.
  4. Snyder, Lloyd R., Joseph J. Kirkland, and John W. Dolan. 2010. "Introduction to Modern Liquid Chromatography." 3rd ed. Wiley. — Chapter 2 — system suitability fundamentals (RSD, Tf, N).
  5. Heyden, Yvan Vander, et al.. 2009. "Robustness of pharmaceutical liquid chromatographic methods." — Robustness vs. system suitability — design-of-experiments framework.
  6. Rozet, Eric, et al.. 2013. "Analysis of recent pharmaceutical regulatory documents on analytical method validation."
  7. European Medicines Agency (EMA). 2011. "Guideline on bioanalytical method validation EMEA/CHMP/EWP/192217/2009." EMA. [link ↗] — EMA companion guideline with bioanalytical SS criteria.
  8. Dong, Michael W.. 2019. "HPLC and UHPLC for Practicing Scientists." 2nd ed. Wiley. — UHPLC-specific suitability adjustments (n=5 vs. n=6).
  9. Kazakevich, Yuri V., and Rosario LoBrutto, eds.. 2007. "HPLC for Pharmaceutical Scientists." Wiley-Interscience.
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  14. Engelhardt, Heinz. 2014. "100 Years of Chromatography." 2nd ed. Wiley-VCH.
  15. Vivó-Truyols, Gabriel, and Hans-Gerd Janssen. 2010. "Probabilistic approach to peak deconvolution in chromatography."

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Źródła dla tej substancji (6)
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    Lide, David R., ed. 2010. CRC Handbook of Chemistry and Physics. 91st ed. Boca Raton, FL: CRC Press.
  • CRC Handbook 105th ed.
    Haynes, William M., David R. Lide, and Thomas J. Bruno, eds. 2024. CRC Handbook of Chemistry and Physics. 105th ed. Boca Raton, FL: CRC Press.
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  • NIST
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Bibliografia metody (Chicago)
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📚 REFERENTIES (Verzamelde bibliografie, Chicago Author-Date) 107 items

Alle wetenschappelijke bronnen die in de accordeons hierboven voor CAS 10043-35-3 worden geciteerd.Formaat: Chicago Manual of Style 17e ed., Author-Date-systeem.

🗄️ Wetenschappelijke databanken

  1. PubChem. 2026. PubChem Compound Summary: CAS 10043-35-3. Bethesda, MD: National Center for Biotechnology Information (NCBI), National Library of Medicine. (Accessed 2026-11-12.)
  2. NIST. 2026. NIST Chemistry WebBook: CAS 10043-35-3. Gaithersburg, MD: National Institute of Standards and Technology. https://webbook.nist.gov/cgi/cbook.cgi?ID=10043-35-3. (Accessed 2026-11-12.)
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📐 Standaarden / Richtlijnen

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📖 Boeken

  1. Hansen, Charles M. 2007. Hansen Solubility Parameters: A User's Handbook, 2nd ed.. Boca Raton, FL: CRC Press. https://www.routledge.com/Hansen-Solubility-Parameters-A-Users-Handbook/Hansen/p/book/9780849372483.
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📘 Monografieën

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📄 Wetenschappelijke artikelen (peer-reviewed)

  1. Stefanis, Emmanuel, and Costas Panayiotou. 2008. "Prediction of Hansen Solubility Parameters with a New Group-Contribution Method." International Journal of Thermophysics 29: 568-585. https://doi.org/10.1007/s10765-008-0415-z.
  2. Stoll, Vincent S., and John S. Blanchard. 1990. "Buffers: Principles and Practice: In Methods in Enzymology, vol. 182." San Diego: Academic Press. https://doi.org/10.1016/0076-6879(90)82008-P.

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