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Simultaneous determination of five organophosphorus pesticide residues in different food samples by solid‐phase microextraction fibers coupled with high‐performance liquid chromatography
Author(s) -
Huang XiaoChen,
Ma JinKui,
Feng RunXiang,
Wei ShouLian
Publication year - 2019
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.9990
Subject(s) - chromatography , solid phase microextraction , chemistry , high performance liquid chromatography , pesticide , pesticide residue , mass spectrometry , gas chromatography–mass spectrometry , agronomy , biology
BACKGROUND Excessive or improper use of organophosphorus pesticides (OPPs) may adversely affect human health through the food chain. In the present study, a simple, rapid and effective analytical method was successfully established and used for the determination of OPPs quinalphos and its analogs in different food samples. RESULTS Under the optimized experimental conditions, five OPPs (quinalphos, triazophos, parathion, fenthion and chlorpyrifos‐methyl) exhibit a good linearity within a range of 0.02 to 2.0 μg mL −1 . The detection limit range was 3.0 to 10.0 μg L −1 (signal‐to‐noise ratio = 3). The method was successfully used to detect and quantify the residues of quinalphos and its analogs in tomato, cabbage, barley and water samples; all spiked samples gave satisfactory recovery rates for the target analytes of between 82% and 98%, with a relative SD of 3.6% to 7.8%. CONCLUSION The results obtained show that the proposed method is an accurate, rapid and reliable sample pre‐treatment method with respect to giving a good enrichment factor and detection limit for determining quinalphos pesticide residues in different food samples. © 2019 Society of Chemical Industry