【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。更多还原

【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.更多还原