田艳, 洪欣, 陈蓓, 蒋璟, 叶开晓, 廖平德. 水中氨氮检测的实验室间比对评估[J]. 环境与职业医学, 2014, 31(12): 972-974. DOI: 10.13213/j.cnki.jeom.2014.0240
引用本文: 田艳, 洪欣, 陈蓓, 蒋璟, 叶开晓, 廖平德. 水中氨氮检测的实验室间比对评估[J]. 环境与职业医学, 2014, 31(12): 972-974. DOI: 10.13213/j.cnki.jeom.2014.0240
TIAN Yan , HONG Xin , CHEN Bei , JIANG Jin , YE Kai-xiao , LIAO Ping-de . Inter-Laboratory Comparison on Determination of Ammonia-Nitrogen in Water[J]. Journal of Environmental and Occupational Medicine, 2014, 31(12): 972-974. DOI: 10.13213/j.cnki.jeom.2014.0240
Citation: TIAN Yan , HONG Xin , CHEN Bei , JIANG Jin , YE Kai-xiao , LIAO Ping-de . Inter-Laboratory Comparison on Determination of Ammonia-Nitrogen in Water[J]. Journal of Environmental and Occupational Medicine, 2014, 31(12): 972-974. DOI: 10.13213/j.cnki.jeom.2014.0240

水中氨氮检测的实验室间比对评估

Inter-Laboratory Comparison on Determination of Ammonia-Nitrogen in Water

  • 摘要: 目的 为检验广西水质检测实验室对水中氨氮检测的技术能力,保障饮用水水源地安全,组织开展52 家实验室间比对。

    方法 采用四分位稳健统计法进行数据分析和结果评价。

    结果 水中氨氮检测的实验室间Z 比分数(ZB)满意率为84.6%;实验室内Z 比分数(ZW)满意率为82.7%。

    结论 参加本次实验室间比对的实验室的水中氨氮检测能力总体水平较好。

     

    Abstract: Objective To assess the competence of detecting ammonia-nitrogen in water quality testing laboratories in Guangxi and ensure the safety of drinking water sources by conducting a comparison of the detection results between 52 laboratories.

    Methods The results were analyzed and evaluated by robust statistical technique using quartiles.

    Results The ratio of laboratories with satisfied inter-laboratory Z-score (ZB) was 84.6%, and the ratio of laboratories with satisfied innerlaboratory Z-score (ZW) was 82.7%.

    Conclusion Most selected laboratories show a qualified competence in detecting ammonia-nitrogen in water.

     

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