标准溶液的不确定度评定

Assessment of Uncertainty of Standard Solution

运用测量不确定度评定与表示的理论,以配制氯化铵标准溶液为例,分析了影响标准溶液不确定度的因素,得出配制标准溶液最好选用优级纯或基准试剂,试剂称重量大于0.5000g及使用1000mL容量瓶配制储备液。

This paper analyzes the impact factor in uncertainty of normal solution using the theory of assessment and expression of uncertainty monitoring with example of preparation of NH_3Cl. The result shows that guarantee reagent(GR) or standard reagent is the optimum while preparing normal solution when the weight of reagent is over 0.5000g and volume bottle of 1000 mL is taken to prepare stock solution.