银量法测定化学试剂氯化钠中氯化钠纯度的不确定度评定  

Uncertainty Evaluation in the Purity Determination of Sodium Chloride by Silver Method

作　　者：冉广芬[1,2] 朱广琴 王波[1] RAN Guang-fen;ZHU Guang-qin;WANG Bo(Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources Qinghai Institute of Salt lakes,Chinese Academy of Sciences,Xining,810008,China;Key Laboratory of Salt Lake Resources Chemistey of Qinghai Province,Xining,810008,China)

机构地区：[1]中国科学院青海盐湖研究所,中国科学院盐湖资源综合高效利用重点实验室,青海西宁810008 [2]青海省盐湖资源化学重点实验室,青海西宁810008

出　　处：《盐湖研究》2018年第2期43-47,共5页Journal of Salt Lake Research

摘　　要：针对银量法测定化学试剂氯化钠中氯化钠纯度,讨论了氯化钠纯度测定结果的测量不确定度的来源及评定方法,当K=2,氯化钠纯度测定结果的扩展不确定度为(99.70±0.64)%。In view of the determination of the purity of sodium chloride by the silver method,the sources of the uncertainty and the evaluation methods of the purity determination of sodium chloride were discussed. The expanded uncertainty for the purity determination of sodium chloride was（ 99. 70 ± 0. 64） % with K = 2.

关 键 词：氯化钠 不确定度 不确定度评定 银量法 

分 类 号：Q654[生物学—生物物理学]