| 摘要: |
| 文章基于2015年11月国家海洋局海洋环境监测实验室外控样考核活动得到的328个考核结果数据，根据《能力验证结果的统计处理和能力评价指南》（CNAS-GL02）中稳健统计Z比分数法进行各参与实验室测试能力评价。评价结果表明，浓度含量较低的样品对实验室的分析能力要求更高，75%以上参与考核的实验室具备准确测定海洋环境沉积物中铜、铅、锌、镉等4种重金属的能力；对测试结果不合格的实验室进行不合格原因查找及分析，针对各种不合格情况提出应对办法和建议，主要包括改善实验室环境状况、相关单位组织基层技术人员开展分析技术培训和交流、进行标准方法修订和完善等。 |
| 关键词: 海洋环境监测 外控样 沉积物 重金属 稳健统计法 实验室管理 |
| DOI： |
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| 基金项目: |
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| Proficiency Assessment of Cu，Pb，Zn and Cd Test in Marine Sediments at Marine Environmental Monitoring Labs |
| WANG Yanjie,SUN Qian,YU Tao,XU Hengzhen,YAO Ziwei |
| National Marine Environmental Monitoring Center |
| Abstract: |
| Based on the 328 data from marine monitoring laboratories by testing quality control samples in november 2015，robust statistical method (Z) recommended by “Guidance on statistic treatment of proficiency testing results and performance evaluation” (CNAS-GL02) was adopted to evaluate the proficiency assessment.The results showed that marine samples with low component density required a much higher level of testing skill .More than 3/4 labs have good analytical capability.The reasons of the failure were analyzed，and the countermeasures were proposed.Analysis capacity of laboratories will be increased by improving the working environment，carrying out technical training，organizing technical communication，revising standard method and setting up new standard method. |
| Key words: Marine environmental monitoring ,Quality control samples,Sediment,Heavy metals,Robust statistics,Laboratory management |
