离子色谱法同时测定铀矿浸出液中的阳离子

李文娟; 王志畅; 刘金辉

离子色谱法同时测定铀矿浸出液中的阳离子

1.
东华理工大学土木与环境工程学院, 江西抚州 344000
2.
东华理工大学化学生物与材料科学学院, 江西抚州 344000
3.
东华理工大学土木与环境工程学院, 江西抚州 344000

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出版历程
- 收稿日期: 2010-02-04
- 修回日期: 2010-05-09

Simultaneous Determination of Cations in Leaching Solution of Uranium Ores by Ion Chromatography

1.
Department of Civil and Environmental Engineering, East China Institute of Technology, Fuzhou 344000, China
2.
Department of Applied Chemistry and Material Science, East China Institute of Technology, Fuzhou 344000, China
3.
Department of Civil and Environmental Engineering, East China Institute of Technology, Fuzhou 344000, China

摘要

摘要: 研究了离子色谱法同时测定砂岩型铀矿浸出液中阳离子的方法。采用Ionpac CS12A阳离子分离柱,以20 mmol/L甲基磺酸(MSA)为淋洗液,直接电导检测-离子色谱法分离测定铀矿石浸出液中常见的阳离子(Li ⁺、Na⁺、K⁺、NH⁺₄、Ca²⁺、Mg²⁺),方法检出限为0.0127~0.194 mg/L,相对标准偏差(RSD,n=5)为1.04%~4.50%,加标回收率为91.5%~106.0%。该方法用于铀矿石浸出液中的阳离子同时测定,具有很好的实用性。
- 离子色谱法 /
- 铀矿浸出液 /
- 阳离子
Abstract: A method for the simultaneous determination of common cations in leaching solution of uranium ores by ion chromatography (IC) is developed. The common inorganic cations and ammonium ion (Li ⁺, Na⁺, K⁺, Ca²⁺, Mg²⁺ and NH⁺₄) were separated using Ionpac CS12A cation exchange column with 20 mmol/L of methanesulfonic acid (MSA) as eluent. The detection limits for common cations and NH₄₊were 0.0127~0.194 mg/L. The recoveries of standard addition for these cations were in a range of 91.5%~106.0% with precision of 1.0%~4.5% RSD (n=5). The proposed method is of high practicability in simultaneous determination of common inorganic cations and ammonium ion in the leaching solution of uranium ores.
- ion /
- chromatography /
- leaching

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