氯化钯中铁含量测量不确定度的来源分析  

Analysis of Uncertainty Sources for Determination of Iron Content in Palladium Chloride

作　　者：李海平[1] 黄金涛 王洋[1] 肖恒[1] 

机构地区：[1]黎明化工研究院,河南洛阳471000 [2]栾川县环境监测站,河南洛阳471500

出　　处：《化学推进剂与高分子材料》2012年第6期79-82,共4页Chemical Propellants & Polymeric Materials

摘　　要：利用原子吸收分光光度计对氯化钯中铁含量进行了测定。通过系列实验,分析评定出了影响测定结果的各种不确定度来源。结果显示,不确定度主要来源于标准溶液的稀释过程、工作曲线的拟合过程以及样品的重复测量过程。测得氯化钯中铁含量为(32.1±2.0)mg/kg。The iron content in palladium chloride was determined by the atomic absorption spectrophotometer. The various uncertainty sources influencing the determined results were analyzed and evaluated through a series of experiments. The results show that the uncertainties mainly come from the dilution process of the standard solution, the fitting process of the working curves and the repetitive determining process of the samples. The determined iron content in palladium chloride is （32.1 _＋ 2.0） mg/kg.

关 键 词：原子吸收分光光度法 氯化钯 铁 不确定度 

分 类 号：O657.31[理学—分析化学]