摘要
目的:建立枸杞中7种有机磷农药的分析方法。方法:采用凝胶渗透色谱(GPC)对枸杞中7种有机磷农药进行样品净化处理后,利用气相色谱-质谱联用对7种农药同时定性、定量测定。结果:在0.05～1.00 mg.L-1各农药组分呈现良好的线性相关,R2均>0.99,7种有机磷农药的平均回收率在79.3%～109.3%,RSD 2.39%～10.33%(n=6),最小检测限范围为2.1～36.7μg.L-1。结论:采用该凝胶渗透色谱-气质联用法同时测定枸杞中7种有机磷农药残留,准确度、精密度良好,可用于定性定量分析。
Objective：A gel permeation chromatographic method was developed for the extraction of 7 pesticides from Chinese wolfberry.Method：Quantity and quality determination method were developed by gas chromatography with mass spectrometry.Result：In the linear range 0.05-1.00 mg·L-1 of each pesticide,the correlation coefficient was higher than 0.99.The average recoveries were from 79.3% to 109.3% with the RSD 2.39%-10.33%（n=6）.The limits of detection（LOD） for these pesticides were from 2.1-36.7 μg·L-1.Conclusion：The method developed is reliable,accurate and can be applied for quantitative and qualitative analysis of 7 pesticides from Chinese wolfberry.
出处
《中国实验方剂学杂志》
CAS
北大核心
2011年第11期83-85,共3页
Chinese Journal of Experimental Traditional Medical Formulae
关键词
凝胶渗透色谱
气质联用
有机磷农药残留
枸杞
gel permeation chromatography（GPC）
gas chromatography-mass spectrometry（GC-MS）
organophosphorus pesticides residue
Chinese wolfberry
