【摘要】 目的了解湖北省疾控机构实验室对水中锰的检测能力状况。方法样品按照"分割水平"设计,采用稳健统计Z比分数法对检测结果进行评定,并绘制Youden图对结果进行分析。结果全省100家疾控机构均参加了此次能力验证,结果反馈率为100.00%,检测结果满意率达89.00%,可疑结果率和不满意结果率分别为5.00%和6.00%。结果可疑的单位,市级1家,县级4家;不满意结果的单位均为县级实验室,共6家。Youden图中共有10家实验室的检测结果在椭圆外。结论全省疾控机构实验室水中锰的检测能力总体较高;部分实验室检测结果存在明显的系统误差,尤其是县级实验室,其检测能力有待提高。更多还原

【Abstract】 Objective To find out the situation of laboratory testing capacity of manganese in water in CDCs of Hubei Province.Methods The split-level test samples were prepared for this program,the test results were evaluated using the robust statistical techniques with "Z-score",and analyzed by Youden graph. Results 100 laboratories in CDCs of the province participated in this proficiency testing,the feedback rate of the measurement results was 100. 00%,the satisfactory rate,the suspicious rate and the unsatisfactory rate of laboratory results were 89. 00%,5. 00% and 6. 00% respectively. The suspicious results were obtained from 1 municipal laboratory and 4 county laboratories. The 6 units with unsatisfactory results were all county laboratories The measurement results of ten laboratories were outside the ellipse in the Youden graph. Conclusion The laboratory testing capacity of manganese in water was relatively high in CDCs of the province,however,it is essential to make further improvement on the testing capacity for some laboratories,especially the county level laboratories.更多还原