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You searched for: Subject liquid chromatography Remove constraint Subject: liquid chromatography Subject term air Remove constraint Subject term: air Subject term acetonitrile Remove constraint Subject term: acetonitrile
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1. A sensitive LC-MS/MS method for measurement of organophosphorus pesticides and their oxygen analogs in air sampling matrices

Author:
Jenna L. Armstrong; Russell L. Dills; Jianbo Yu; Michael G. Yost; Richard A. Fenske
Source:
Journal of environmental science and health 2014 v.49 no.2 pp. 102-108
ISSN:
1532-4109
Subject:
acetonitrile; air; chlorpyrifos; correlation; detection limit; environmental health; foams; gas chromatography-mass spectrometry; liquid chromatography; monitoring; oxygen; polyurethanes; spray drift; stable isotopes; storage quality; tandem mass spectrometry
Abstract:
... A rapid liquid chromatography tandem mass spectrometry (LC-MS/MS) method has been developed for determination of levels of the organophosphorus (OP) pesticides chlorpyrifos (CPF), azinphos methyl (AZM), and their oxygen analogs chlorpyrifos-oxon (CPF-O) and azinphos methyl-oxon (AZM-O) on common active air sampling matrices. XAD-2 resin and polyurethane foam (PUF) matrices were extracted with acet ...
DOI:
10.1080/03601234.2014.846744
PubMed:
24328542
PubMed Central:
PMC5953420

2. Determination of six veterinary pharmaceuticals in egg by liquid chromatography: Chemometric optimization of a novel air assisted-dispersive liquid-liquid microextraction by solid floating organic drop

Author:
Carla M. Teglia; Lucia Gonzalo; María J. Culzoni; Héctor C. Goicoechea
Source:
Food chemistry 2019 v.273 pp. 194-202
ISSN:
0308-8146
Subject:
acetonitrile; air; albendazole; chemometrics; chloramphenicol; eggs; enrofloxacin; liquid chromatography; liquid-phase microextraction; methanol; methylene chloride; nicarbazin; pH; sodium phosphate; solidification; solvents; trimethoprim; veterinary drugs; zinc sulfate
Abstract:
... Two extraction strategies for albendazole, chloramphenicol, trimethoprim, enrofloxacin, oxitetracycline and nicarbazin in egg were optimized for its quantitation by liquid chromatography. First, two designs were built to find out the optimized condition for the air assisted-dispersive liquid-liquid microextraction based on solidification of organic drop: a fractional factorial and a central compos ...
DOI:
10.1016/j.foodchem.2017.08.034

3. Hydrophilic Interaction Liquid Chromatography-Tandem Mass Spectrometry Analysis of Fosetyl-Aluminum in Airborne Particulate Matter

Author:
Francesca Buiarelli; Patrizia Di Filippo; Carmela Riccardi; Donatella Pomata; Riccardo Marsiglia; Carla Console; Daniele Puri
Source:
Journal of Analytical Methods in Chemistry (Online) 2018 v.2018 pp. -
ISSN:
2090-8873
Subject:
Phytophthora; acetonitrile; air; exposure assessment; filters; fungicides; ionization; liquid chromatography; particulates; solid phase extraction; spraying; tandem mass spectrometry
Abstract:
... Fosetyl-aluminum is a synthetic fungicide administered to plants especially to prevent diseases caused by the members of the Peronosporales and several Phytophthora species. Herein, we present a selective liquid chromatography-tandem mass spectrometry (LC-MS/MS) method to analyze residues of fosetyl-A1 in air particulate matter. This study was performed in perspective of an exposure assessment of ...
DOI:
10.1155/2018/8792085
PubMed:
29686933
PubMed Central:
PMC5852886