饮用水中硝酸盐氮的检测能力验证  

Proficiency testing for detecting nitrate nitrogen in drinking water

作　　者：张欣烨[1] 张杰[1] 王永星[1] 杨似玉 田好亮[1] 祝刚[1] ZHANG Xin-ye;ZHANG Jie;WANG Yong-xing;YANG Si-yu;TIAN Hao-liang;ZHU Gang(Department of Inspection,Henan Center for Disease Control and Prevention,Zhengzhou Henan 450016,China)

机构地区：[1]河南省疾病预防控制中心环境卫生科,河南郑州450016

出　　处：《中国卫生工程学》2020年第6期844-845,848,共3页Chinese Journal of Public Health Engineering

摘　　要：目的了解2018年河南省各县级疾控机构对饮用水中硝酸盐氮的检测能力。方法能力验证采用四分位稳健统计法对检测结果进行统计,并用Z比分数对考核结果进行判定。采用Z比分数统计法对所有结果进行统计和评价,结果获得满意检测结果的实验室51家,满意率为92.7%;不满意检测结果有4家,不满意率为7.3%;无可疑检测结果。结论河南省疾控机构的实验室基本可以准确检测饮用水中的硝酸盐氮,完成日常监测任务。Objective To evaluate the nitrate nitrogen detection capability in drinking water at county level of Henan disease control and prevention laboratory.Methods This proficiency test adopted the quartile robust statistical method to conduct statistics on the test results,and determined the test results with the Z-score.Results All results were counted and evaluated by Z-score statistics,the results showed 51 laboratories achieved satisfactory results,the satisfactory rate was 92.7%;4 labs had unsatisfactory results,account for 7.3%;none suspicious results.Conclusion Most laboratories of disease control organization in Henan can accurately detect nitrate nitrogen in drinking water and accomplish daily monitoring task.

关 键 词：饮用水 硝酸盐氮 检测 能力验证 

分 类 号：R123[医药卫生—环境卫生学]