Ionic liquids: solvents and sorbents in sample preparation

KD Clark, MN Emaus, M Varona… - Journal of separation …, 2018 - Wiley Online Library
The applications of ionic liquids (ILs) and IL‐derived sorbents are rapidly expanding. By
careful selection of the cation and anion components, the physicochemical properties of ILs …

Volatile sampling by headspace techniques

AC Soria, MJ García-Sarrió, ML Sanz - TrAC trends in analytical chemistry, 2015 - Elsevier
We review the use of static headspace (S-HS) and dynamic headspace (D-HS) techniques
for the extraction of volatiles from different matrices. We present fundamentals and the most …

Sample preparation for bioanalytical and pharmaceutical analysis

KD Clark, C Zhang, JL Anderson - 2016 - ACS Publications
Biological and pharmaceutical samples represent formidable challenges in sample
preparation that hold important consequences for bioanalysis and genotoxic impurity …

One-step sample preparation for convenient examination of volatile monoterpenes and phenolic compounds in peppermint leaves using deep eutectic solvents

KM Jeong, Y **, SY Han, EM Kim, J Lee - Food chemistry, 2018 - Elsevier
Deep eutectic solvents (DESs) were investigated as an extraction medium for one-step
sample preparation for chemical characterization of peppermint (Mentha piperita L.). Rather …

Rapid and sensitive analysis of polychlorinated biphenyls and acrylamide in food samples using ionic liquid-based in situ dispersive liquid-liquid microextraction …

C Zhang, C Cagliero, SA Pierson… - Journal of Chromatography …, 2017 - Elsevier
A simple and rapid ionic liquid (IL)-based in situ dispersive liquid-liquid microextraction
(DLLME) method was developed and coupled to headspace gas chromatography (HS-GC) …

One-pot synthesis of Fe3O4/polypyrrole/graphene oxide nanocomposites for electrochemical sensing of hydrazine

Z Yang, Q Sheng, S Zhang, X Zheng, J Zheng - Microchimica Acta, 2017 - Springer
The authors describe the synthesis of a nanocomposite consisting of Fe 3 O 4 nanoparticles,
polypyrrole and graphene oxide (Fe 3 O 4/PPy/GO), and its application to voltammetric …

An ultra-sensitive electrochemical sensor for hydrazine based on AuPd nanorod alloy nanochains

Y Liu, SS Chen, AJ Wang, JJ Feng, X Wu, X Weng - Electrochimica Acta, 2016 - Elsevier
In this work, bimetallic alloyed AuPd nanorod chains (NRCs) were synthesized by a rapid
and simple one-step wet-chemical method, using 4-aminopyridine (4-AP) as the structure …

Analytical method development for 19 alkyl halides as potential genotoxic impurities by analytical quality by design

K Lee, W Yoo, JH Jeong - Molecules, 2022 - mdpi.com
Major issues in the pharmaceutical industry involve efficient risk management and control
strategies of potential genotoxic impurities (PGIs). As a result, the development of an …

In situ generation of hydrophobic magnetic ionic liquids in stir bar dispersive liquid-liquid microextraction coupled with headspace gas chromatography

MJ Trujillo-Rodríguez, JL Anderson - Talanta, 2019 - Elsevier
For the first time, an in situ stir bar dispersive liquid-liquid microextraction approach has
been developed and coupled with headspace gas chromatography-mass spectrometry for …

Assessment of gas chromatography methodology approach for the trace evaluation of carcinogenic impurity, methyl chloride, in trimetazidine dihydrochloride

RV Bhupatiraju, SR Battula, MVNR Kapavarapu… - Annales …, 2023 - Elsevier
Objective A simple and robust head space/gas chromatography with flame ionisation sensor
(HS/GC/FIS) approach for the trace evaluation of carcinogenic impurity, methyl chloride, in …