摘要
采用一个萃取柱柱体,使用一种石墨化炭黑和伯仲胺叠加在一起的双层固相萃取法提取、过滤,气相色谱-质谱法同时测定可食性包装材料中20种有机磷农药含量。选择离子监测模式,外标法定量。平均回收率为84%-108%,相对标准偏差为0.3%-2.7%。结果表明,该方法简便、快速、灵敏、准确、检出限低,适合可食性包装材料中20种有机磷农药含量的测定。
Studies twenty kinds of organophosphorus pesticide in edible packaging materials have been carried out. A extraction column cylinder was presented in this paper, using a graphitized carbon black （GCB） and close amine （PSA） added together double （GCB）/PSA solid-phase extraction （SPE） extraction andfi ltering, then the determination of 20 organophosphorus pesticides in edible packing material were performed using a gas chromatography mass spectrometry （GC/MS）. The external standards calibration curves were used for quantitative determination. The average recoveries were 84%-108% and relative standard deviations were 0.3%-2.7%. The method was simple, rapid, sensitive, accurate. The limits of detection were low. It was suitable for the determination of organophosphorus pesticides in edible packaging materials.
出处
《检验检疫学刊》
2014年第6期30-35,共6页
Journal of Inspection and Quarantine
基金
国家质检总局科技计划项目(2014IK258)
