1,10-菲啰啉分光光度法测定工业用氢氧化钠中铁含量的不确定度评定  

Uncertainty Evaluation of 1,10-Phenanthroline Spectrophotometric Method for the Determination of Iron in Sodium-Hydroxide for Industrial Use

作　　者：黄志锋 康怀腾 江嘉铭 麦永业 简艳婷 Huang Zhifeng;Kang Huaiteng;Jiang Jiaming;Mai Yongye;Jian Yanting(Guangdong Academy of Sciences,Guangdong Institute of Testing and Analysis(China Guangzhou Analysis and Testing Center),Guangzhou 510070,China)

机构地区：[1]广东省科学院,广东省测试分析研究所(中国广州分析测试中心)广东广州510070

出　　处：《山东化工》2020年第14期87-90,共4页Shandong Chemical Industry

摘　　要：本文分析了1,10-菲啰啉分光光度法测定工业用氢氧化钠中铁含量的不确定度评定,通过建立数学模型并分析其不确定来源。结果表明,本次测试的工业用氢氧化钠中铁含量为(1.203±0.0287)×10-3%,扩展不确定度为2.87×10-5%,k=2,不确定度主要来源为标准曲线拟合和标准溶液的配制。The article analyses uncertainty evaluation of 1,10-phenanthroline spectrophotometric method for the determination of iron in sodium-hydroxide and analyzing its source of uncertainty By establishing mathematical model.The result shows that the content of iron in sodium-hydroxide is(1.203±0.0287)×10-3%,the extended-uncertainty is 2.87×10-5%,k=2.The main source of uncertainty is from fitting of standard curve and preparation of standard solution.

关 键 词：不确定度 1 10-菲啰啉分光光度法 铁 工业用氢氧化钠 

分 类 号：O657.32[理学—分析化学]