PMID- 27093495 OWN - NLM STAT- MEDLINE DCOM- 20170202 LR - 20170806 IS - 1873-376X (Electronic) IS - 1570-0232 (Linking) VI - 1022 DP - 2016 Jun 1 TI - Determination of organophosphorus pesticides in ginseng by carbon nanotube envelope-based solvent extraction combined with ultrahigh-performance liquid chromatography mass spectrometry. PG - 141-152 LID - S1570-0232(16)30237-9 [pii] LID - 10.1016/j.jchromb.2016.04.018 [doi] AB - A miniature extraction envelope containing multiwall carbon nanotubes, diatomite, neutral alumina, and anhydrous magnesium sulfate was developed for the solvent extraction of organophosphorus pesticides in dried ginseng. After the powder of dried ginseng sample was introduced into the envelope, the envelope was heat sealed and sonicated in acetonitrile for the extraction and clean-up of analytes. The resulting extracts were analyzed by an ultrahigh-performance liquid chromatograph with an electrospray ion source and a quadrupole orbitrap mass spectrometer (UHPLC-ESI/Q-Orbitrap MS) under target-MS(2) mode, and the analytes were quantified by matrix-match calibration. Finally, the simultaneous identification and quantification of 19 pesticide residues were carried out by the present method. It is noteworthy that in this method the processes of extraction and clean-up for the analytes could be carried out and accomplished in one step. The recoveries and relative standard deviations (RSDs) of analytes were in the range of 82.6-110.8% and 1.0-10.6%, respectively. The limits of detection (LODs) and quantification (LOQs) for analytes were determined to be 0.08-0.29mugkg(-1) and 0.26-0.98mugkg(-1), respectively. Several pesticide residues investigated in this study were found in 4 real samples, with the concentrations lower than the maximum residue limit (0.050mgkg(-1)) established by European Union. CI - Copyright (c) 2016 Elsevier B.V. All rights reserved. FAU - Su, Rui AU - Su R AD - Changchun University of Chinese Medicine, Changchun 130117, China; Department of Chemistry, Jilin University, Changchun 130012, China. FAU - Li, Dan AU - Li D AD - Changchun University of Chinese Medicine, Changchun 130117, China. FAU - Wang, Xinghua AU - Wang X AD - Department of Chemistry, Jilin University, Changchun 130012, China. FAU - Yang, Hongmei AU - Yang H AD - Changchun University of Chinese Medicine, Changchun 130117, China. FAU - Shi, Xiaoyu AU - Shi X AD - Changchun University of Chinese Medicine, Changchun 130117, China. FAU - Liu, Shuying AU - Liu S AD - Changchun University of Chinese Medicine, Changchun 130117, China. Electronic address: syliu_ginseng@163.com. LA - eng PT - Journal Article DEP - 20160408 PL - Netherlands TA - J Chromatogr B Analyt Technol Biomed Life Sci JT - Journal of chromatography. B, Analytical technologies in the biomedical and life sciences JID - 101139554 RN - 0 (Nanotubes, Carbon) RN - 0 (Organophosphorus Compounds) RN - 0 (Pesticide Residues) RN - 0 (Plant Preparations) SB - IM MH - Chromatography, High Pressure Liquid/*methods MH - Limit of Detection MH - Linear Models MH - Nanotubes, Carbon/*chemistry MH - Organophosphorus Compounds/*analysis/chemistry MH - Panax/*chemistry MH - Pesticide Residues/*analysis/chemistry MH - Plant Preparations/*chemistry MH - Reproducibility of Results OTO - NOTNLM OT - Carbon nanotube envelope OT - Dried ginseng root OT - Organophosphorus pesticides OT - UHPLC-ESI/Q-Orbitrap MS EDAT- 2016/04/20 06:00 MHDA- 2017/02/06 06:00 CRDT- 2016/04/20 06:00 PHST- 2015/12/09 00:00 [received] PHST- 2016/03/28 00:00 [revised] PHST- 2016/04/08 00:00 [accepted] PHST- 2016/04/20 06:00 [entrez] PHST- 2016/04/20 06:00 [pubmed] PHST- 2017/02/06 06:00 [medline] AID - S1570-0232(16)30237-9 [pii] AID - 10.1016/j.jchromb.2016.04.018 [doi] PST - ppublish SO - J Chromatogr B Analyt Technol Biomed Life Sci. 2016 Jun 1;1022:141-152. doi: 10.1016/j.jchromb.2016.04.018. Epub 2016 Apr 8.