玩具油漆涂层中有机锡检测能力验证样品研制及应用分析  

Preparation of Proficiency Testing Sample for Migration Organic Tin in Toys Paint Coating and Its Application

作　　者：刘崇华[1] 丁志勇[1] 杨丹华[1] 刘松杰 田勇[1] 蚁乐洲[1] 黄宁姗 李函珂 

机构地区：[1]广东出入境检验检疫局检验检疫技术中心,广东广州510623 [2]恒昌涂料(惠阳)有限公司检测实验室,广东惠州516223

出　　处：《分析测试学报》2017年第7期892-896,共5页Journal of Instrumental Analysis

基　　金：广东省省级科技计划项目(2014A040401066);中国合格评定国家认可中心科研项目(2014CNAS08)

摘　　要：制备了用于可迁移有机锡检测能力验证的玩具油漆涂层样品,并开展了相关测定能力验证计划,采用迭代法、四分位法和敏感分析法3种不同统计方法对23家实验室数据进行统计分析,并对不满意结果的原因进行了分析。结果表明所研制样品的均匀性和稳定性良好,能满足能力验证要求。不同统计方法对实验室能力评定结果存在差异,但指定值差异很小,而能力评定标准差差异较大,运用卡方检验能选择出更合理的统计方法。The samples of toys paint coating for the proficiency testing program（PT） “determination of migration Organic Tin in toys paint coating”were prepared,and applied in a PT scheme. 23 labs data were counted and analyzed by iterative method,quartile method and sensitivity analysis method. The cause of unsatisfactory results was also analyzed in this report. The results showed that PT samples had good homogeneity and stability,which could meet the requirement of this PT. Different statistical methods might lead to different assessment results for the laboratories. As the difference of assigned value was very small,but the difference of standard deviation for proficiency assessment was relatively larger. A more reasonable statistical method was selected by using chi-square-goodness of fit test.

关 键 词：玩具 可迁移有机锡 能力验证 统计分析 

分 类 号：O657.63[理学—分析化学] S482.48[理学—化学]