| 多元线性回归pH配位滴定法同时测定钙和镁 |
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| 引用本文： | 朱化雨 吴仁涛. 多元线性回归pH配位滴定法同时测定钙和镁[J]. 理化检验(化学分册), 1998, 34(9): 401-402 |
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| 作者姓名： | 朱化雨 吴仁涛 |
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| 作者单位： | 山东省临沂师专化学系!临沂276005(朱化雨)，泰安电大(吴仁涛)，临沂一轻技校(刘瑞玲) |
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| 摘 要： | 将多元线性回归分析应用于pH配位滴定,提出△lgK_(MY)较小金属离子混合溶液中各组分同时测定的方法,讨论了方法的原理、回归方程和最佳条件.对钙、镁合成样品及实际水样中钙、镁含量进行测定,结果满意.
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| 关 键 词： | pH配位滴定 多元线性回归 钙镁 |
CHELATOMETRIC pH TITRATION OF CALCIUM AND MAGNESIUM BY THE MULTIPLE LINEAR REGRESSION METHOD |
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| Zhu Huayu,Wu Rentao and Liu Ruiling. CHELATOMETRIC pH TITRATION OF CALCIUM AND MAGNESIUM BY THE MULTIPLE LINEAR REGRESSION METHOD[J]. Physical Testing and Chemical Analysis Part B:Chemical Analgsis, 1998, 34(9): 401-402 |
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| Authors: | Zhu Huayu Wu Rentao Liu Ruiling |
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| Abstract: | It is reported that a new method of chelatometric pH titration of calcium and magnesium simulta-neously in a mixed solution by applying the multiple linear regression method is established. In spite of the fact that there is only a small difference between the stability constants of the chelates of Ca2 and Mg2 with EDTA (AlgK?),the analysis can be done without separation or masking, and the results obtained from the analysis of some simulated samples are quite satisfactory. |
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| Keywords: | Chelatometric pH titration Multiple linear regression Calcium Magnesium |
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