GC-MS用于广西三七炮制品中有机氯农药残留测定方法的研究

目的：测定广西三七炮制品中有机氯农药的残留量。方法：采用气相色谱-质谱联用的选择离子检测（SIN）方法，测定广西三七炮制品中九种有机氯类农药残留量。结果：九种有机氯类农药定量测定的线性关系在0．01ng-0．1ng的范围内良好，方法回收率为96．75％-101．84％，RSD％〈3．73％。所测定的16个不同品种中有机氯农药残留量均小于2×10^-7s/s。结论：该方法准确可靠、重复性好，可较好地对三七炮制品中有机氯农药残留量进行控制。

GC -MS for organochlorine pesticides residues in Guangxi notoginseng processed products research method

Objective： Determination of residue of organichlorine pesticides in Guangxi notoginseng processed products. Meth ods： Selected ion monitoring scan mode （SIM） of GC - MS were adopted. Results： This method had good relativity of linearity in 0.01ng -0. lng, the recoveries of samples were 96. 75% - 101.84% , RSD% 〈 3.73%. The residue of organichlorine pesticides in Guangxi notoginseng processed products were all less than 2 × 10^-7 g/g. Conclusion： The method is accurate and reliable, good re- peatability, it can be better for notoginseng organochlorine pesticide residues in processed products.