硫酸铈滴定液浓度标定的测量不确定度评定
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篇名: | 硫酸铈滴定液浓度标定的测量不确定度评定 |
TITLE: | |
摘要: | 目的:建立硫酸铈滴定液(0.1 mol/L)浓度标定的测量不确定度评定方法。方法:分析硫酸铈滴定液浓度标定的不确定度来源,建立测量模型,对其标定过程中各不确定度的分量进行分析评估,计算扩展不确定度。结果:硫酸铈滴定液(0.1 mol/L)浓度标定的扩展不确定度为0.000 5 mol/L,其浓度可表示为(0.101 2±0.000 5)mol/L,包含因子k=2。结论:该方法适用于硫酸铈滴定液浓度标定的测量不确定度评定。 |
ABSTRACT: | OBJECTIVE: To establish a method for the evaluation of the uncertainty for the concentration calibration of Cerous sulfate titration solution (0.1 mol/L). METHODS: The sources of uncertainty of Cerous sulfate titration solution was analyzed, and measurement model was established to evaluate the components of uncertainty and calculate the expanded uncertainty. RESULTS: The expanded uncertainty of Cerous sulfate titration solution (0.1 mol/L) was 0.000 5 mol/L and the concentration was (0.101 2±0.000 5) mol/L, coverage factor k=2. CONCLUSIONS: The method is suitable for the uncertainty evaluation for the concentration calibration of Cerous sulfate titration solution. |
期刊: | 2016年第27卷第21期 |
作者: | 黎雪清,张力扬,杨敏,王铁杰,郑党儿 |
AUTHORS: | LI Xueqing,ZHANG Liyang,YANG Min,WANG Tiejie,ZHENG Dang’er |
关键字: | 硫酸铈滴定液;浓度;标定;测量不确定度;评定 |
KEYWORDS: | Cerous sulfate titration solution; Concentration; Calibrate; Uncertainty; Evaluation |
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