PMID- 23593881 OWN - NLM STAT- MEDLINE DCOM- 20140728 LR - 20231213 IS - 1000-8713 (Print) IS - 1000-8713 (Linking) VI - 30 IP - 12 DP - 2012 Dec TI - [Fast screening ninety-six pesticides in six kinds of agricultural products by high performance liquid chromatography-quadrupole/electrostatic field orbit trap high-resolution mass spectrometry]. PG - 1246-52 AB - A high-throughput method for the determination of 96 pesticides in six kinds of agricultural products by liquid chromatography-quadrupole/electrostatic field orbit trap high-resolution mass spectrometry was developed. After extraction with 0.1% acetic acid in acetonitrile solution and concentration, dispersive solid-phase extraction was further utilized to reduce the matrix interference. The chromatographic analysis was performed on a C18 column with methanol and 5 mmol/L ammonium acetate solution as the mobile phases with a gradient elution program. The 96 pesticide residues were analyzed in switching positive and negative modes at the same time. With the optimized mass resolution, accurate mass-to-charge ratio extraction of the target pesticide compounds in full scan mode could eliminate matrix interference effectively. Two-stage threshold-triggered full mass scan mode was utilized to further improve the accuracy of qualitative analysis. The linear ranges of all the 96 pesticides were from 1 microg/L to 200 microg/L with correlation coefficients greater than 0.99. By detecting spiked samples, the detection limits were 5 microg/kg for all the residues and the recoveries were in the range of 58% - 105% with the relative standard deviations (RSDs) between 8.8% and 18.3%. FAU - Wu, Bin AU - Wu B AD - Animal, Plant and Food Inspection Center of Jiangsu Entry-Exit Inspection and Quarantine Bureau, Nanjing 20001, China. FAU - Ding, Tao AU - Ding T FAU - Liu, Han AU - Liu H FAU - Chen, Huilan AU - Chen H FAU - Zhao, Zengyun AU - Zhao Z FAU - Zhang, Rui AU - Zhang R FAU - Shen, Chongyu AU - Shen C LA - chi PT - English Abstract PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - Se Pu JT - Se pu = Chinese journal of chromatography JID - 9424804 RN - 0 (Pesticide Residues) SB - IM MH - *Chromatography, High Pressure Liquid MH - Edible Grain/chemistry MH - Food Contamination/analysis MH - *Mass Spectrometry MH - Pesticide Residues/*analysis MH - Solanum tuberosum/*chemistry MH - Glycine max/*chemistry MH - Vegetables/chemistry EDAT- 2013/04/19 06:00 MHDA- 2014/07/30 06:00 CRDT- 2013/04/19 06:00 PHST- 2013/04/19 06:00 [entrez] PHST- 2013/04/19 06:00 [pubmed] PHST- 2014/07/30 06:00 [medline] AID - 10.3724/sp.j.1123.2012.07014 [doi] PST - ppublish SO - Se Pu. 2012 Dec;30(12):1246-52. doi: 10.3724/sp.j.1123.2012.07014.