DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Deep eutectic solvents as green and sustainable diluents in headspace gas chromatography for the determination of trace level genotoxic impurities in pharmaceuticals

Journal Article · · Journal of Pharmaceutical & Biomedical Analysis
 [1];  [2];  [1];  [1];  [1];  [1]
  1. Genentech, South San Francisco, CA (United States)
  2. Iowa State Univ., Ames, IA (United States); Ames Laboratory (AMES), Ames, IA (United States)

Genotoxic impurities (GTIs) are potential carcinogens that need to be controlled down to ppm or lower concentration levels in pharmaceuticals under strict regulations. The static headspace gas chromatography (HS-GC) coupled with electron capture detection (ECD) is an effective approach to monitor halogenated and nitroaromatic genotoxins. Deep eutectic solvents (DESs) possess tunable physico-chemical properties and low vapor pressure for HS-GC methods. In this study, zwitterionic and non-ionic DESs have been used for the first time to develop and validate a sensitive analytical method for the analysis of 24 genotoxins at sub-ppm concentrations. Compared to non-ionic diluents, zwitterionic DESs produced exceptional analytical performance and the betaine: 7 (1,4- butane diol) DES outperformed the betaine: 5 (1,4-butane diol) DES. Limits of detection (LOD) down to the 5-ppb concentration level were achieved in DESs. Wide linear ranges spanning over 5 orders of magnitude (0.005–100 µg g–1) were obtained for most analytes with exceptional sensitivities and high precision. The method accuracy and precision were validated using 3 commercially available drug substances and excellent recoveries were obtained. Finally, this study broadens the applicability of HS-GC in the determination of less volatile GTIs by establishing DESs as viable diluent substitutes for organic solvents in routine pharmaceutical analysis.

Research Organization:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division (CSGB)
Grant/Contract Number:
AC02-07CH11358
OSTI ID:
2382784
Report Number(s):
IS-J--11,352
Journal Information:
Journal of Pharmaceutical & Biomedical Analysis, Journal Name: Journal of Pharmaceutical & Biomedical Analysis Vol. 244; ISSN 0731-7085
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (32)

Quantitative mass spectrometry in proteomics: a critical review journal August 2007
Low-Level Quantitation of Formaldehyde in Drug Substance by HPLC–UV journal February 2012
Determination of Residual Solvents in Pharmaceuticals by Static Headspace Gas Chromatography Using Natural Deep Eutectic Solvents as Mediums: A Partition Coefficients Study journal July 2019
Enhancing the detection sensitivity of trace analysis of pharmaceutical genotoxic impurities by chemical derivatization and coordination ion spray-mass spectrometry journal January 2010
A generic static headspace gas chromatography method for determination of residual solvents in drug substance journal October 2010
Determination of trace level genotoxic impurities in small molecule drug substances using conventional headspace gas chromatography with contemporary ionic liquid diluents and electron capture detection journal September 2014
Deep eutectic solvents in separations: Methods of preparation, polarity, and applications in extractions and capillary electrochromatography journal December 2020
Modulating solvation interactions of deep eutectic solvents formed by ammonium salts and carboxylic acids through varying the molar ratio of hydrogen bond donor and acceptor journal April 2021
Investigating the effect of systematically modifying the molar ratio of hydrogen bond donor and acceptor on solvation characteristics of deep eutectic solvents formed using choline chloride salt and polyalcohols journal March 2022
Emerging frontiers of deep eutectic solvents in drug discovery and drug delivery systems journal December 2019
Control and analysis of alkyl and benzyl halides and other related reactive organohalides as potential genotoxic impurities in active pharmaceutical ingredients (APIs) journal November 2008
Recent advances in trace analysis of pharmaceutical genotoxic impurities journal April 2010
A general static-headspace gas chromatographic method for determination of residual benzene in oral liquid pharmaceutical products journal January 2011
Control and analysis of hydrazine, hydrazides and hydrazones—Genotoxic impurities in active pharmaceutical ingredients (APIs) and drug products journal April 2011
Strategies for the identification, control and determination of genotoxic impurities in drug substances: A pharmaceutical industry perspective journal June 2011
A new derivatization reagent for LC–MS/MS screening of potential genotoxic alkylation compounds journal February 2013
A simple and sensitive method to analyze genotoxic impurity hydrazine in pharmaceutical materials journal July 2016
Use of ionic liquids as headspace gas chromatography diluents for the analysis of residual solvents in pharmaceuticals journal October 2017
Natural deep eutectic solvents as eco-friendly and sustainable dilution medium for the determination of residual organic solvents in pharmaceuticals with static headspace-gas chromatography journal September 2018
Regulation of genotoxic and carcinogenic impurities in drug substances and products journal September 2006
Deep eutectic solvents. The new generation of green solvents in analytical chemistry journal January 2021
High-Resolution Thermogravimetric Analysis Is Required for Evaluating the Thermal Stability of Deep Eutectic Solvents journal September 2022
Characterizing the Solvation Characteristics of Deep Eutectic Solvents Composed of Active Pharmaceutical Ingredients as a Hydrogen Bond Donor and/or Acceptor journal February 2022
Deep Eutectic Solvents for Enzymatic Esterification of Racemic Menthol journal November 2019
Room-Temperature Ionic Liquids: Solvents for Synthesis and Catalysis. 2 journal May 2011
Genotoxic Impurities in Pharmaceutical Manufacturing: Sources, Regulations, and Mitigation journal August 2015
Deep Eutectic Solvents (DESs) and Their Applications journal October 2014
A Systematic Method Development Strategy for Determination of Pharmaceutical Genotoxic Impurities journal May 2010
Risk Assessment of Genotoxic Impurities in New Chemical Entities: Strategies To Demonstrate Control journal February 2013
Deep eutectic solvents for pharmaceutical formulation and drug delivery applications journal March 2020
Quantitative mass spectrometry: an overview journal October 2016
Headspace Gas Chromatography-Mass Spectrometry for Volatile Components Analysis in Ipomoea Cairica (L.) Sweet Leaves: Natural Deep Eutectic Solvents as Green Extraction and Dilution Matrix journal June 2019