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目的考核全省疾病预防控制机构食品中铜的检测能力。方法用稳健统计技术,用“Z比分数”法进行结果分析。结果全省99家实验室参加了能力验证活动,均按期反馈了结果。结果满意的实验室共有82家,整体满意率达82.83%;结果可疑的实验室有10家,结果不满意的实验室有7家。在17家市级实验室中,共15家实验室获得了满意结果;81家县级实验室中,共66家实验室获得满意结果。结论活动取得了良好的效果,通过此次考核改进了实验室质量控制运行状况,使实验室的检测能力水平得到有效保证。
Objective To examine the province’s disease prevention and control agencies in the detection of copper food. Methods Using robust statistical techniques, the results were analyzed using the “Z score” method. Results 99 laboratories in the province participated in the proficiency testing activities, all of which gave feedback on time. Results A total of 82 satisfactory laboratories, the overall satisfaction rate of 82.83%; 10 suspicious results in the laboratory, the results were unsatisfactory in 7 laboratories. In 17 municipal laboratories, a total of 15 laboratories received satisfactory results; 81 county-level laboratories, a total of 66 laboratories to obtain satisfactory results. Conclusions The activities have achieved good results. Through the examination, the quality of laboratory operation has been improved and the laboratory testing ability has been effectively guaranteed.