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目的:用VB编程实现滴定液标定过程中不确定度的计算。方法:通过对硝酸银滴定液(0.1mol·L-1)标定过程中不确定度的计算,建立对滴定液不确定度计算的数学模型并推导出不确定度的计算公式,为VB编程奠定基础。结果:通过对各变量的分析,用VB编程计算出各变量的不确定度,最后得出扩展不确定度。结论:采用本方法建立的编程软件可用于滴定液标定过程中不确定度的计算。
Objective: To calculate the uncertainty of titration solution calibration with VB programming. Methods: By calculating the uncertainty in the calibration of silver nitrate titration solution (0.1 mol·L-1), the mathematical model of the uncertainty of the titration solution was established and the calculation formula of the uncertainty was deduced, which laid the foundation for VB programming basis. Results: Through the analysis of each variable, the uncertainty of each variable was calculated by VB programming, and finally the expanded uncertainty was obtained. Conclusion: The programming software established by this method can be used to calculate the uncertainty of titration solution calibration.