| 2-(1,3,4-三氮唑偶氮)-5-二乙氨基苯胺作为络合滴定铜的指示剂的研究 |
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| 引用本文： | 林勇强,梁华定,邱赏.2-(1,3,4-三氮唑偶氮)-5-二乙氨基苯胺作为络合滴定铜的指示剂的研究[J].台州学院学报,2005,27(6):47-50. |
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| 作者姓名： | 林勇强 梁华定 邱赏 |
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| 作者单位： | 台州学院,生命科学与医药化工学院,浙江,临海,317000 |
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| 摘 要： | 研究了新试剂2-（1，3，4-三氮唑偶氮）-5-二乙氨基苯胺（TZAN）作为络合滴定铜的指示剂的分析性能。结果表明，在pH值为4．0-7．5范围内，加入6滴指示剂TZAN，用EDTA标准溶液进行滴定，滴定终点由红色变为亮绿色，变色敏锐，准确度高，具有一定的实用价值。方法用于实际样品分析，结果满意。
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| 关 键 词： | 2-（1 3 4-三氮唑偶氮）-5-二乙氨基苯胺 铜 指示剂 络合滴定 |
| 文章编号： | 1672-3708（2005）06-0047-04 |
| 收稿时间： | 2005-09-06 |
| 修稿时间： | 2005-09-30 |
Studies on 2-(1,3,4-triazolylazo)-5-diethyla mina Aniline as Indicator for Copper in Complexometric Titration |
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| LIN Yong-qiang,LIANG Hua-ding,QIU Shang.Studies on 2-(1,3,4-triazolylazo)-5-diethyla mina Aniline as Indicator for Copper in Complexometric Titration[J].Journal of Taizhou University,2005,27(6):47-50. |
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| Authors: | LIN Yong-qiang LIANG Hua-ding QIU Shang |
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| Institution: | School of Life Science, Pharmaceutical and Chemical Engineering, Taizhou University, Linhai 317000, China |
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| Abstract: | In the paper,we have studied 2-(1,3,4-triazolylazo)-5-diethyla mina Aniline as indicator for copper in complexometric titration.The result indicates,in the buffer solution of pH4.0 result 7.0,adding 6 drops of indicator,and using the complexing titration with the standard solution of EDTA,terminal point turns from red into bright green.It is sharp to change color.The method with high accuracy and certain practical value is used in the real sample analysis.the result is satisfactory. |
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| Keywords: | 2-(1 3 4-triazolylazo)-5-diethyla mina Aniline copper indicator complexing titration |
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