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为了解各省级疾病预防控制中心对生活饮用水中无机非金属指标氯化物、硝酸盐、硫酸盐、氟化物的检测能力,开展全国31家省(直辖市、自治区)疾病预防控制中心参加的实验室间比对质量控制考核。采用各参数不同浓度水平双样设计,以稳健统计方法对实验室的检测能力进行评价。结果显示,全部参数均获得满意结果的实验室25家,占80.6%;存在可疑结果的实验室4家,占12.9%;存在离群结果的实验室2家,占6.5%。结果提示,参加本次实验室间比对的大多数省级疾病预防控制中心均具有生活饮用水中无机非金属指标氯化物、硫酸盐、硝酸盐、氟化物检测能力。
To understand the provincial CDC’s ability to detect inorganic non-metallic chlorides, nitrates, sulfates and fluorides in drinking water, the CDC in 31 provinces (municipalities and autonomous regions) participated in the experiment Room comparison quality control assessment. Different parameters of different concentrations of double-design, with robust statistical methods to test the ability of the laboratory evaluation. The results showed that there were 25 laboratories with satisfactory results for all parameters, accounting for 80.6%; 4 laboratories with suspicious results, accounting for 12.9%; and 2 laboratories with outlier results accounting for 6.5%. The results suggest that most of provincial CDC participating in this inter-laboratory comparison have the ability to detect inorganic non-metallic chlorides, sulfates, nitrates and fluorides in drinking water.