PMID- 29103596 OWN - NLM STAT- MEDLINE DCOM- 20180131 LR - 20181202 IS - 1873-3778 (Electronic) IS - 0021-9673 (Linking) VI - 1528 DP - 2017 Dec 15 TI - Simultaneous determination of three pesticide adjuvant residues in plant-derived agro-products using liquid chromatography-tandem mass spectrometry. PG - 53-60 LID - S0021-9673(17)31616-3 [pii] LID - 10.1016/j.chroma.2017.10.075 [doi] AB - Herein, an accurate and reliable isotope-labelled internal standard method was developed and validated for simultaneous determination of three polar pesticide adjuvants, namely 2-pyrrolidone, N-methyl-2-pyrrolidone, and N-ethyl-2-pyrrolidone in plant-derived agro-products. Matrices, including apple, cabbage, tomato, cucumber, rice, and wheat were extracted with a modified quick, easy, cheap, effective, rugged, and safe "QuEChERS" method and purified with a new clean-up sorbent (Z-Sep). A hydrophilic interaction liquid chromatography column (HILIC), exhibiting a lipophilic-hydrophilic character, was used to separate the three analytes over 10min using liquid chromatography-tandem mass spectrometry (LC-MS/MS). Matrix effects in various matrices were evaluated and an isotope-labelled internal standard method was employed to compensate for ion enhancement/suppression effects. At three fortification levels (2.0, 5.0, and 20.0mug/kg), the mean recoveries ranged from 78.5 to 112.1% with relative standard deviations (RSDs)<11.0% for all tested analytes. The limits of detection (LODs) and quantification (LOQs) were 0.04-0.45 and 0.12-1.58mug/kg in various matrices, respectively. The developed experimental protocol was successfully applied to monitor different samples purchased from local markets in Beijing, China. In conclusion, the developed method exhibited both high sensitivity and satisfactory accuracy and is suitable for the simultaneous determination of the three tested pesticide adjuvant residues in agro-products of plant origin. CI - Copyright (c) 2017 Elsevier B.V. All rights reserved. FAU - Li, Hui AU - Li H AD - Institute of Quality Standard and Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-product Quality and Safety, Ministry of Agriculture, Beijing, 100081, PR China. FAU - Jiang, Zejun AU - Jiang Z AD - Institute of Quality Standard and Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-product Quality and Safety, Ministry of Agriculture, Beijing, 100081, PR China. FAU - Cao, Xiaolin AU - Cao X AD - Institute of Quality Standard and Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-product Quality and Safety, Ministry of Agriculture, Beijing, 100081, PR China. FAU - Su, Hang AU - Su H AD - Institute of Quality Standard and Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-product Quality and Safety, Ministry of Agriculture, Beijing, 100081, PR China. FAU - Shao, Hua AU - Shao H AD - Institute of Quality Standard and Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-product Quality and Safety, Ministry of Agriculture, Beijing, 100081, PR China. FAU - Jin, Fen AU - Jin F AD - Institute of Quality Standard and Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-product Quality and Safety, Ministry of Agriculture, Beijing, 100081, PR China. FAU - Abd El-Aty, A M AU - Abd El-Aty AM AD - Department of Pharmacology, Faculty of Veterinary Medicine, Cairo University, 12211, Giza, Egypt; Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, Konkuk University, Seoul, 143-701, Republic of Korea. FAU - Wang, Jing AU - Wang J AD - Institute of Quality Standard and Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-product Quality and Safety, Ministry of Agriculture, Beijing, 100081, PR China. Electronic address: w_jing2001@126.com. LA - eng PT - Journal Article DEP - 20171102 PL - Netherlands TA - J Chromatogr A JT - Journal of chromatography. A JID - 9318488 RN - 0 (Pesticide Residues) SB - IM MH - Beijing MH - Brassica/chemistry MH - *Chromatography, Liquid MH - Crops, Agricultural/*chemistry MH - Cucumis sativus/chemistry MH - Food Analysis/*methods MH - Limit of Detection MH - Pesticide Residues/*analysis MH - *Tandem Mass Spectrometry OTO - NOTNLM OT - Isotope-labelled internal standard OT - Liquid chromatography-tandem mass spectrometry OT - Pesticide adjuvant OT - Plant-derived agro-product OT - QuEChERS EDAT- 2017/11/07 06:00 MHDA- 2018/02/01 06:00 CRDT- 2017/11/07 06:00 PHST- 2017/07/02 00:00 [received] PHST- 2017/10/27 00:00 [revised] PHST- 2017/10/30 00:00 [accepted] PHST- 2017/11/07 06:00 [pubmed] PHST- 2018/02/01 06:00 [medline] PHST- 2017/11/07 06:00 [entrez] AID - S0021-9673(17)31616-3 [pii] AID - 10.1016/j.chroma.2017.10.075 [doi] PST - ppublish SO - J Chromatogr A. 2017 Dec 15;1528:53-60. doi: 10.1016/j.chroma.2017.10.075. Epub 2017 Nov 2.