植物油中七氯等3种有机氯农药检测能力验证研究

Proficiency Testing of Three Organochlorine Pesticides Determination in Vegetable Oils in Laboratories in China

目的了解我国食品检测实验室的有机氯农药检测能力。方法2003年,国家认证认可监督管理委员会组织实施了植物油中有机氯农药七氯、艾氏剂、狄氏剂残留量能力验证工作。全国14个省、市的21个实验室参加了本次能力验证,推荐的测试方法为美国官方分析化学师协会(AOAC)检测方法——气相色谱法,也可采用其他方法。结果共收回21个实验室的63个测试结果。经测试,实验室满意结果率为81.0%～85.7%,可疑结果率为9.5%,不满意结果率为4.8%～9.5%。结论参加能力验证的绝大多数实验室可以准确检测以上3种有机氯农药。

Objective To understand the testing capability for organochlorine pesticides of the food inspection labs in China. Methods The CNCA organized the proficiency testing(PT) of determination of heptachlor, aldrin and dieldrin in the vegetable oils. 21 labs from 14 provinces (cities) took part in the PT. The GC method prescribed by official method of AOAC was recommended, other method was also permitted. Results The PT showed that 81.0%-85.7% labs presented satisfactory results, 9.5% had questionable results and 4.8%-9.5% had dissatisfactory results. Conclusion Most of the labs that took part in the PT have good competence in analyzing organochlorine pesticides.