| 催化伏安法测定矿石中的微量铬 |
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| 引用本文： | 夏艳秋,袁庆云,马力,陈永乐. 催化伏安法测定矿石中的微量铬[J]. 有色矿冶, 2005, 21(6): 57-59 |
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| 作者姓名： | 夏艳秋 袁庆云 马力 陈永乐 |
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| 作者单位： | 1. 辽宁葫芦岛有色金属集团公司,高纯研究所,辽宁,葫芦岛,125003
2. 天津地质研究院,天津,300000 |
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| 摘 要： | 实验在含0.04%铜铁试剂,0.5%氢氧化铵.0.09 M氯化铵和0.4%氯化钾的支持电解质中,用封闭式流动体系微电解池催化伏安法测定矿石中的微量铬,建立了一个灵敏、准确、快速的分析方法。铬催化电流在0.002~0.05μg/mL范围内与它的浓度成比例,此法选用于矿石中微量铬的测定。
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| 关 键 词： | 痕量铬 封闭流动体系 催化伏安 |
| 文章编号： | 1007-967X(2005)06-0057-03 |
| 修稿时间： | 2005-10-08 |
Determination of trace chromium in ore by catalysis volt- ampere |
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| XIA Yan-qiu,YUAN Qing-yun,MA Li,CHEN Yong-le. Determination of trace chromium in ore by catalysis volt- ampere[J]. Non-Ferrous Mining and Metallurgy, 2005, 21(6): 57-59 |
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| Authors: | XIA Yan-qiu YUAN Qing-yun MA Li CHEN Yong-le |
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| Affiliation: | XIA Yan-qiu~1,YUAN Qing-yun~1,MA Li~2,CHEN Yong-le~2 |
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| Abstract: | An accurate analytical method of trace chromium determination in the ore is established.The determi-nation is operated in close flowing system electrolytic microcell which solution is a mixture of cupferron reagent(0.04%),ammonium hydroxide(0.5%),ammonium chloride(0.09 M)and potassium chloride(0.4%)by catal-ysis volt-ampere.The catalysis current of chromium is in proportion to its concentration which is between 0.002 mg/mL and 0.05 mg/mL.This method is very fit for the determination of chromium in the ore. |
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| Keywords: | trace chromium close flowing system volt-amp |
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