Analysis of proficiency testing results of mercury and arsenic in waste water by laboratories in Guangxi Province
LV Baoyu, BAI Haiqiang, HUANG Zeng, TENG Yunmei, LIU Weiming, HE Dongming, QIN Huafang, PAN Yan
Guangxi Zhuang Autonomous Region Environmental Monitoring Centre, Nanning 530028, China
摘要：利用能力验证计划，对广西全区检验检测机构的污水中汞、砷分析能力进行对比和评价。采用单因子方差对考核样品进行均匀性检测，对全区144 家检验检测机构的检测结果进行四分位稳健统计分析，用Z 比分值绘制柱状图直观评定各检测机构的测试结果。污水中汞检测结果合格率为77.0%，砷检测结果合格率为84.8%。广西检验机构的汞、砷总体检测能力较强，少数检测机构的检测能力和水平有待提高。
Abstract：The analysis capacity of mercury and arsenic in waste water of inspection and testing organization in
Guangxi Province was compared and evaluated through proficiency testing program. Single factor variance was used to test
the homogeneity of the samples, the results of 144 inspection and testing organization in the whole region were analyzed
by the quartile robust statistical analysis, and the results of each inspection institution were evaluated directly by drawing
histogram with Z-score. The satisfactory rate of testing results of mercury and arsenic in waste water was 77.0% and 84.8%,
respectively. The overall testing capability of mercury and arsenic in the inspection institutions of Guangxi province is
relatively good, while the testing capability of a few inspection institutions need to be improved.
Keywords：waste water; mercury; arsenic; proficiency testing
基金：2018 年度环保领域能力验证活动技术服务项目(GXZC2018–D3–A0544–CGZX–1) ；广西跨国界流域水环境状况调查
吕保玉，白海强，黄增，等. 广西污水中汞、砷检测能力验证结果分析[J]. 化学分析计量，2020，29(2)：113-117.
LV B Y，BAI H Q，HUANG Z，et al. Analysis of proficiency testing results of mercury and arsenic in waste water by laboratories in Guangxi Province[J].Chemical analysis and meterage，2020，29(2)：113-117.