PMID- 24417086 OWN - NLM STAT- MEDLINE DCOM- 20160125 LR - 20190318 IS - 0513-4870 (Print) IS - 0513-4870 (Linking) VI - 48 IP - 10 DP - 2013 Oct TI - [Sample pretreatment methods of pesticide residues in Panax notoginseng of Chinese traditional medicine]. PG - 1585-9 AB - Two sample pretreatment methods of pesticide residues in Panax notoginseng of Chinese traditional medicine were developed. For Method I, the residues were extracted from homogenized tissue with n-hexane-dichloromethane (6:4) by means of ultrasonication, the crude extract was purified by an Envi-carb/NH2 solid-phase extraction (SPE) column. For Method II, matrix solid-phase dispersion (MSPD) technique was used for extracting and cleaning up. The eluates were concentrated by rotary evaporation, and then were redissolved in dichloromethane prior to GC-MS determination. The determination was performed in selected ion monitoring (SIM) mode with the external calibration for quantitative analysis. Under the optimal conditions, the results indicated that the methods are easier and faster, the recoveries of method I for the spiked standards at concentration of 0.01, 0.5, and 2.0 mg x kg(-1) were 81.90%-102.10% with the relative standard deviations (RSDs) of 3.60%-7.10%. The recoveries of method II were 96.26%-104.20% with the RSDs of 3.52%-7.94%. The detection limits (S/N) for residues of pesticides were in the range of 0.48-1.34 ng x g(-1). The results indicated that these multiresidue analysis methods can meet the requirements for determination of residue pesticides and can be appropriate for trace analysis of residue pesticides in Panax notoginseng. FAU - Wu, Na AU - Wu N AD - Department of Chemistry, Honghe College, Mengzi 661100, China. FAU - Liu, Wei AU - Liu W AD - Department of Chemistry, Honghe College, Mengzi 661100, China. FAU - Yan, He-Ping AU - Yan HP AD - Department of Chemistry, Honghe College, Mengzi 661100, China. FAU - Fan, Ai-Ping AU - Fan AP AD - Department of Chemistry, Honghe College, Mengzi 661100, China. FAU - Huang, Du-Shu AU - Huang DS AD - Department of Chemistry, Honghe College, Mengzi 661100, China. FAU - Zhou, Bo AU - Zhou B AD - Department of Chemistry, Honghe College, Mengzi 661100, China. FAU - Chen, Xian-Lan AU - Chen XL AD - Department of Chemistry, Honghe College, Mengzi 661100, China. FAU - Xu, Shi-Juan AU - Xu SJ AD - Department of Chemistry, Honghe College, Mengzi 661100, China. FAU - Shi, Ling AU - Shi L AD - Department of Chemistry, Honghe College, Mengzi 661100, China. LA - chi PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - Yao Xue Xue Bao JT - Yao xue xue bao = Acta pharmaceutica Sinica JID - 21710340R RN - 0 (Hexanes) RN - 0 (Pesticide Residues) RN - 0 (Solvents) RN - 2DDG612ED8 (n-hexane) RN - 588X2YUY0A (Methylene Chloride) SB - IM MH - Analytic Sample Preparation Methods/*methods MH - Gas Chromatography-Mass Spectrometry MH - Hexanes/chemistry MH - Methylene Chloride/chemistry MH - Panax notoginseng/*chemistry MH - Pesticide Residues/*analysis MH - *Solid Phase Extraction MH - Solvents EDAT- 2014/01/15 06:00 MHDA- 2016/01/26 06:00 CRDT- 2014/01/15 06:00 PHST- 2014/01/15 06:00 [entrez] PHST- 2014/01/15 06:00 [pubmed] PHST- 2016/01/26 06:00 [medline] PST - ppublish SO - Yao Xue Xue Bao. 2013 Oct;48(10):1585-9.