冷原子吸收分光光度法测定汽车制动衬片摩擦材料中汞的不确定度评定  

Uncertainty Evaluation of in Measurement of Mercury in Automobile Brake Lining Friction Material by Cold Atomic Absorption Spectrophotometric Method

作　　者：陈进秋 高丽[1,2] 卫星 杨欢 左周庆 Chen Jinqiu;Gao Li;Wei Xing;Yang Huan;Zuo Zhouqing(China Automotive Engineering Research Institute Co.,Ltd.,Chongqing 401122;Chongqing Automotive Lightweight Engineering Technology Research Center,Chongqing 401122,China)

机构地区：[1]中国汽车工程研究院股份有限公司,重庆401122 [2]重庆市汽车轻量化工程技术研究中心,重庆401122

出　　处：《广东化工》2021年第15期207-209,216,共4页Guangdong Chemical Industry

基　　金：重庆市汽车轻量化工程技术研究中心科研平台。

摘　　要：本文对冷原子吸收分光光度法测定汽车制动衬片摩擦材料中汞含量的不确定度进行了研究,确定试验过程主要包括重复测量、样品称量、制备浸出液过程、测试液制备过程、标准物质、标准溶液配制过程以及标准工作曲线拟合7个不确定度分量,对上述不确定度分量进行了分析和计算。结果表明,测试液制备过程、标准溶液的配制过程、标准工作曲线拟合是引起不确定度的主要因素,对实际检验具有指导作用。In this paper, the uncertainty of mercury content in automotive brake lining friction materials determined by cold atomic absorption spectrometry is studied. The test process mainly includes seven uncertainty components: measurement repeating, sample weighing, preparation of leaching solution, preparation of test solution, standard material, preparation of standard solution and fitting of standard working curve. The above-mentioned uncertainty components are analyzed and calculated. The results indicate that the preparation process of the test solution and the standard solution as well as the fitting of the standard working curve are the main factors causing the uncertainty. The study has a guiding role for the actual inspection.

关 键 词：不确定度 汞 冷原子吸收分光光度法 汽车制动衬片 摩擦材料 

分 类 号：TQ[化学工程]