【摘要】 目的用外部质量控制考核方法评价各实验室铁、锰检测能力。方法将全部实验室分成3组,每组约60个实验室,分割水平样品对设计,采用稳健统计方法结合专家评议对实验室能力进行评价。结果全国30个省(直辖市、自治区)的180个实验室参加了本次能力验证,获得满意结果的有127家,占70.56%,可疑结果的有16家,占8.88%,不满意结果的有37家,占20.56%;建委系统实验室满意率最高为83.3%;东中西部地区实验室满意率分别为71.75%、71.42%和66.67%。除水利系统实验室外,参加考核的6个行业实验室铁锰检测能力差异无统计学意义;东中西部参加能力验证的实验室铁锰检测能力差异无统计学意义。结论参加本次能力验证的实验室,大多数具有铁和锰检测能力。更多还原

【Abstract】 Objective To evaluate the proficiency for iron and magnesium determination of labs in China with methods of external quality control.Methods The labs under the survey were divided into 3 groups(60 in each group).Split level design was used and lab proficiency was evaluated with robust statistical methods combined with expert comments.Results Totally 180 labs from 30 provinces(municipals and autonomous regions) participated in the proficiency test(PT).There were 70.56% of the labs(127) with satisfactory result,8.88%(16) with questionable result,and 20.56%(37) with dissatisfactory result.The rate of satisfactory result for construction sector was the highest(83.3%).The ratio of labs with satisfactory result for east area of China was 71.75%,71.42% for middle area,and 66.67% for west area.Conclusion Most labs participating in the PT had good competence in analyzing iron and magnesium.Rate of satisfactory result was not significantly different among the labs from 6 sectors.The proficiency for iron and magnesium determination of different areas was not significantly different.更多还原