| 乙二胺四乙酸络合滴定法测定异辛酸镍中镍含量 |
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| 引用本文： | 王敏,黄一平,李培欣. 乙二胺四乙酸络合滴定法测定异辛酸镍中镍含量[J]. 石化技术与应用, 2006, 24(5): 401-402 |
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| 作者姓名： | 王敏 黄一平 李培欣 |
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| 作者单位： | 中国石油辽阳石化分公司,研究院,辽宁,辽阳,111003;中国石油辽阳石化分公司,研究院,辽宁,辽阳,111003;中国石油辽阳石化分公司,研究院,辽宁,辽阳,111003 |
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| 摘 要： | 建立用乙二胺四乙酸(EDTA)络合滴定法测定异辛酸镍中镍含量的方法。试样经加热分解后用盐酸溶解,在pH值为9~10时,以紫脲酸铵为指示剂,用EDTA标准溶液滴定镍量。该方法的相对标准偏差为0.86%,回收率为99.3%~101.0%,操作简便快捷,分析结果准确可靠,适用于异辛酸镍中镍含量的测定。
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| 关 键 词： | 络合滴定 乙二胺四乙酸 异辛酸镍 镍 紫脲酸铵 |
| 文章编号： | 1009-0045（2006）05-0401-02 |
| 收稿时间： | 2006-03-23 |
| 修稿时间： | 2006-07-14 |
Measurement of nickel content in nickel iso-caprylate by ethylenediamine tetraacetic acid complexometric titration |
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| Wang Min,Huang Yiping,Li Peixin. Measurement of nickel content in nickel iso-caprylate by ethylenediamine tetraacetic acid complexometric titration[J]. Petrochemical Technology & Application, 2006, 24(5): 401-402 |
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| Authors: | Wang Min Huang Yiping Li Peixin |
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| Abstract: | A method to measure the content of nickel in the nickel iso - caprylate by complexometric titration using ethylenediamine tetraacetic acid (EDTA) was set up. The sample was solved with hydrochloric acid after heated to decomposition form. The content of nickel in sample was determined with murexide as indicator, EDTA standard solution as titrant under the condition of pH value 9-10. The results showed that the relative standard deviation of the method was 0. 86% ,rate of recovery was 99. 3% - 101. 0% . The method was satisfactory to measure the nickel content in the nickel iso - caprylate. |
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| Keywords: | complexometric titration ethylenediamine tetraacetic acid nickel iso-caprylate nickel murexide |
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