摘要
建立了五味子中117种农药多残留气相色谱串联质谱(GC-MS/MS)检测方法。样品经乙酸乙酯-乙腈(30∶70,v/v)超声振荡提取,凝胶渗透色谱技术(GPC)净化GC-MS/MS测定。117种农药在五味子样品中的最低定量限(LOQ,S/N=10)为0.005～0.2mg/kg。每种农药在五味子基质中,添加0.005～0.2mg/kg范围内(n=5),回收率为62.1%～122.8%,相对标准偏差(RSD)为3.1%～17.8%。在0.01～5.0μg/mL的浓度范围内,各农药均具有良好线性。
This experiment established a multi residue simultaneous determination method of 117 pesticides in Schisandra chinensis by gas chromatography tandem mass spectrometry （G C-MS/MS）. Samples with ethyl acetate-acetonitnle（30：70, v/v） homogeneous extraction, GPC method purifying passed through, and internal standard method for quantitating. The LOQ （LOQ, S/N=10） of 117 pesticides in Schisandra chinensis is 0. 005-0. 2 mg/kg. Every kinds of pesticide in Schisandra chinensis, with addition of 0. 005-0. 2 mg/kg（n=5）, the corresponding recoveries were 62.1%-122. 8%, the relative standard deviations （RSD） were 3.1%-17. 8%. In the linear range （0. 01-5.0 μg/mL） of each pesticide, the linearity of all the pesticide are good.
出处
《沈阳师范大学学报（自然科学版）》
CAS
2013年第1期115-119,共5页
Journal of Shenyang Normal University:Natural Science Edition
基金
沈阳市科技局科技项目资助(1091131-3-00)
关键词
五味子
农药残留
GC-MS/MS
GPC
Schisandra chinensis
pesticide residue
Gas chromatography-tandem mass spectrometry （G C-MS/ MS）
CPC
