摘要
运用离子选择性电极、调理电路、DAQ卡和计算机,构建了基于LabVIEW 8.0的电位滴定虚拟仪器,实现了电位滴定实验数据的自动记录和自动处理。将该虚拟仪器应用到乙酸等的电位滴定实验表明,实验结果相对标准偏差小于0.65%,提高了实验结果的重现性和准确性;且虚拟仪器界面友好、操作简便、实时绘出滴定曲线,自动处理数据及即时得到结果。
A virtual instrument of pH potentiometric titration based on LabVIEW 8.0 was constructed by ion selective electrode, homemade adjusting circuit, data acquiring board and computer. And the automatically recording and processing of potentiometric titration experimental data were realized. The virtual instrument was applied to the test of potentiometric titration of acetic acid, and the RSD of test was less than 0.35 %. The virtual instrument improves the repeatability and accuracy of testing results, and has the advantages of friendly interface, easily operating, drawing the titrution curve in real-time, automatically processing experimental data, etc.
出处
《分析科学学报》
CAS
CSCD
北大核心
2009年第6期705-708,共4页
Journal of Analytical Science
基金
四川省教育厅项目(川教[2005]198号)
