NDLI: Determination of Six Organophosphorus Pesticides in Water by Single-Drop Microextraction Coupled with GC-NPD

Content Provider	Springer Nature Link
Author	Tian, Fei Liu, Weijie Fang, Hansun An, Min Duan, Shunshan
Copyright Year	2013
Abstract	A single-drop microextraction (SDME) procedure with a modified microsyringe was developed for the analysis of six organophosphorus pesticides (OPPs) in water. Microsyringe was modified by attaching a 2-mm cone onto the needle tip end. The conditions affecting SDME performance including microextraction solvent, stirring speed, extraction time, ionic strength and sample pH were optimized. Under the optimized conditions, the linear ranges of the SDME with ethion as internal standard were 0.05–50 μg L−1 (except for dimethoate 5–5,000 μg L−1) and limits of detection (LOD) were 0.012–0.020 μg L−1 (except for dimethoate 0.45 μg L−1). Recoveries of six pesticides were in the range of 70.6–107.5 % with relative standard deviation lower than 6.0 %. The modified method is simple, rapid and sensitive, and acceptable in the analysis of OPPs pesticides in water samples.
Starting Page	487
Ending Page	492
Page Count	6
File Format	PDF
ISSN	00095893
Journal	Chromatographia
Volume Number	77
Issue Number	5-6
e-ISSN	16121112
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2013-12-01
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Single-drop microextraction Gas chromatography Organophosphorus pesticides Chromatography Proteomics Pharmacy Laboratory Medicine
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Analytical Chemistry Biochemistry Clinical Biochemistry

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