| 非催化动力学光度法测定铬的研究 |
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| 引用本文： | 字明显,何建英,陈春鹏,黄金宏,王国民.非催化动力学光度法测定铬的研究[J].化学研究,1999,10(2):26-28. |
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| 作者姓名： | 字明显 何建英 陈春鹏 黄金宏 王国民 |
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| 作者单位： | 河南大学化学化工学院,开封,475001 |
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| 摘 要： | 研究了在ＨＣｌ介质中，Ｃｒ（Ⅵ）氧化碘离子显色反应的动力学条件，建立了测定Ｃｒ（Ⅵ）的非催化动力学分析法。方法的灵敏度７．２７×１０－７ｇ·Ｌ－１，检测限５．３３×１０－６ｇ·Ｌ－１，测定范围２×１０－５～３×１０－４ｇ·Ｌ－１。用于测定标钢中的铬，测定值与标准值基本一致
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| 关 键 词： | 非催化动力学光度法 铬（Ⅵ） |
| 文章编号： | 1008-1011(1999)-02-0026-03 |
| 修稿时间： | 1999-01-03 |
Study on Uncatalyzed-kinetic Spectrophotometric Determination of Chromium |
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| Zi Mingxian,He Jianying,Chen Chunpeng,Huang Jinhong,Wang Guomin.Study on Uncatalyzed-kinetic Spectrophotometric Determination of Chromium[J].Chemical Research,1999,10(2):26-28. |
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| Authors: | Zi Mingxian He Jianying Chen Chunpeng Huang Jinhong Wang Guomin |
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| Abstract: | A method for determining Cr() is described based on the uncatalytic effect of Cr() on the colorizing oxidation reaction of iodic ion in chlorhydric acid medium.The sensitivity of the method is 7.2710-7gL-1,and the detection limit for Cr() is 5.3310-7gL-1.The linear range is 210-5310-4gL-1.Its proved that the method produces satisfactory results when used for determining Cr() in standard steels. |
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| Keywords: | uncatalyzed-kinetic spectrophotometry chromium |
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