PMID- 22667085 OWN - NLM STAT- MEDLINE DCOM- 20130712 LR - 20190923 IS - 1000-8713 (Print) IS - 1000-8713 (Linking) VI - 30 IP - 1 DP - 2012 Jan TI - [Determination of seven toxaphene congeners in ginseng and milkvetch root by gas chromatography tandem mass spectrometry]. PG - 14-20 AB - A novel method for the determination of representative toxaphene congeners in traditional Chinese herbal medicines was developed. Ginseng and Milkvetch Root were selected as the samples and seven toxaphene congeners were selected as the monitoring objects. The samples were extracted by accelerated solvent extraction with cyclohexane-acetone (9:1, v/v), then cleaned-up by Florisil solid phase extraction with hexane as the eluent and the residues were detected by gas chromatography-electron ionization tandem mass spectrometry (GC-EI-MS/MS) in multiple reaction monitoring (MRM) mode. The performance was demonstrated by the analysis of Ginseng and Milkvetch Root samples spiked with toxaphene congeners at three concentration levels of 0.005, 0.01 and 0.1 mg/kg. The recoveries ranged from 72.4% to 105% with the relative standard deviations (RSDs) of 0.96%-10.4%. The limits of detection (LODs) were 0.2-1.7 microg/kg. This method is sensitive and efficient in the aspect of extraction, and can be applied to monitor the residue of toxaphene congeners in Ginseng and Milkvetch Root. FAU - Tian, Shaoqiong AU - Tian S AD - Shanghai Institute of Pharmaceutical Industry, Shanghai 200040, China. FAU - Mao, Xiuhong AU - Mao X FAU - Miao, Shui AU - Miao S FAU - Jia, Zhengwei AU - Jia Z FAU - Wang, Ke AU - Wang K FAU - Ji, Shen AU - Ji S LA - chi PT - English Abstract PT - Journal Article PL - China TA - Se Pu JT - Se pu = Chinese journal of chromatography JID - 9424804 RN - 0 (Insecticides) RN - 0 (Pesticide Residues) RN - 8001-35-2 (Toxaphene) SB - IM MH - Astragalus Plant/*chemistry MH - Gas Chromatography-Mass Spectrometry/*methods MH - Insecticides/analysis MH - Panax/*chemistry MH - Pesticide Residues/analysis MH - Plant Roots/chemistry MH - Tandem Mass Spectrometry/*methods MH - Toxaphene/analogs & derivatives/*analysis EDAT- 2012/06/07 06:00 MHDA- 2013/07/16 06:00 CRDT- 2012/06/07 06:00 PHST- 2012/06/07 06:00 [entrez] PHST- 2012/06/07 06:00 [pubmed] PHST- 2013/07/16 06:00 [medline] AID - 10.3724/sp.j.1123.2011.09019 [doi] PST - ppublish SO - Se Pu. 2012 Jan;30(1):14-20. doi: 10.3724/sp.j.1123.2011.09019.