| 半微量法测定Ca^2＋含量探讨 |
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| 引用本文： | 韦群兰,韦友欢.半微量法测定Ca^2＋含量探讨[J].南宁师范高等专科学校学报,2008,25(2):134-135. |
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| 作者姓名： | 韦群兰 韦友欢 |
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| 作者单位： | [1]南宁地区教育学院理工系,广西南宁530001 [2]南宁师范高等专科学校化学与生物工程系,广西龙州532400 |
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| 摘 要： | 利用半微量法测定CaCO3中Ca^2＋含量，并对半微量滴定法与常量滴定法的平行测定结果进行比较。结果两种方法无显著差异，F检验，t检验结果均在允许范围内，所以半微量滴定法的精确度达到常量滴定法测定水平，适宜推广到分析测试中。本文还从溶样试剂、pH值调控、指示剂选择等方面得出半微量法滴定Ca^2＋的最佳条件。
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| 关 键 词： | 络合滴定 半微量法 钙离子含量 |
The Determination of Ca2+ with Semi-micro Method |
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| Wei Qunlan,Wei Youhuan.The Determination of Ca2+ with Semi-micro Method[J].Journal of Nanning Junior Teachers College,2008,25(2):134-135. |
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| Authors: | Wei Qunlan Wei Youhuan |
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| Institution: | Wei Qunlan, Wei Youhuan (1.Technology Department, Nanning Education College, Nanning, Guangxi 530001, China; 2.Dept. of Chemistry and Bioengineering, Nanning Teachers College, Chongzuo, Guangxi 532200, China) |
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| Abstract: | The Ca^2＋ content in CaCO3 is determined and the determination data of semi-microtitration and conventional titration are analyzed. The result shows that there is no significant difference and F examination and t examination are all in the appropriate scope. Thus, the semi-microtitration can be extended to analysis and testing with the same precision as conventional titration. In addition, the best conditions for semi-microtitration are determined in account of sample dissolution reagent, pH regulation and choice of indicator. |
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| Keywords: | complex titration semi-microtitration Ca^2＋ content |
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