人参中17种有机氯农药残留测定能力验证分析

目的：了解全国药品检验机构有机氯农药残留量测定的技术能力；对几种农药残留量测定方法进行比较。方法：采用了0.3σ准则法对能力验证样品进行了均匀性和稳定性检验，以专家实验室公议值作为指定值，以规定值作为能力评定标准差。采用百分相对差法评定各实验室的结果。统计了来自21个省、自治区、直辖市的39家实验室的有机氯农药残留测定结果，对各参加实验室的能力验证结果进行了结果总数、中位数、标准四分位数间距、稳健的RSD、最小值、最大值、极值的统计分析，对不合格数据进行了技术分析。结果：39家实验室优秀率为20.5%，合格率为64.1%，不合格率为15.4%。结论：参加能力验证的大多数实验室基本具备执行药典标准的有机氯农药残留量测定的技术能力。

Objective: To assess the proficiency of the institute for drug control for determination of organochlorine pesticides;And to compare the different techniques for the measurement of pesticide residues.Methods: The 0.3σ test was used to evaluate the homogeneity and stability of the proficiency testing sample.The assigned value was consensus value from expert laboratories.The standard deviation for proficiency assessment was determined by perception of experts.The results of the laboratories were assessed by the estimates of deviation.Statistical analysis was performed on the results from 39 labs in 21 provinces,including median,NIQR,robust RSD,minimum,maximum,and range.The technical analysis was conducted for outlier results.Results: 8 labs which participated in this program obtained excellent results,accounted for 20.5%;the results from 25 labs were passed,accounting for 64.1% and that from 6 labs were failed,accounting for 15.4%.Conclusion: Most of the labs that took part in the PT have good competence in analyzing organochlorine pesticides.

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