电感耦合等离子体质谱法测定铜精矿中痕量铀
ICP-MS Determination of Trace Amount of Uranium in Copper Concentrates
摘 要
铜精矿样品经盐酸和硝酸溶解,用电感耦合等离子体质谱法测定样品溶液中痕量铀的含量。优化了仪器工作参数及酸的用量。铀的质量浓度在40.0 μg·L-1范围以内与其信号值呈线性关系,方法的检出限(3S/N)为0.012 ng·g-1。此法用于铜精矿中铀含量的测定,加标回收率在98.6%~99.4%之间。
铜精矿
铀
ICP-MS
Copper concentrates
Uranium
Abstract
Sample of copper concentrate was dissolved with HCl and HNO3, and the content of uranium in the sample solution was determined by ICP-MS. Working parameters of the ICP-MS instrument and amounts of acids used for dissolving the sample were optimized. Linear relationship between values of analytical signal and mass concentration of uranium was kept in the range within 40.0 μg·L-1, with detection limit (3S/N) of 0.012 ng·g-1. The proposed method was applied to the determination of uranium in sample of copper concentrate, and test for recovery was made by standard addition method, giving values of recovery in the range of 98.6%-99.4%.
中图分类号 O657.31
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收稿日期 2009/9/10
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备注赵伟(1980-),男,江苏高淳人,工程师,硕士,主要从事矿产品的检验工作。
引用该论文: ZHAO Wei,ZHENG Jian-ming,LI Jian-jun. ICP-MS Determination of Trace Amount of Uranium in Copper Concentrates[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2011, 47(2): 175～176
赵伟,郑建明,李建军. 电感耦合等离子体质谱法测定铜精矿中痕量铀[J]. 理化检验－化学分册, 2011, 47(2): 175～176
被引情况:
【1】刘德晔,朱醇, "电感耦合等离子体质谱法测定水样中氯含量",理化检验－化学分册 48, 1117-1118(2012)
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参考文献
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【3】杨玲娟,杜建修,李建军,等.流动注射电化学还原-化学发光法测定铀［J］.理化检验-化学分册, 2007,43(5):348-350.
【4】何为,王守绪,唐先忠.微分脉冲极谱法测定痕量铀［J］.冶金分析, 2006,26(1):52-55.
【5】侯列奇,王树安,李洁,等.电感耦合等离子体原子发射光谱法测定铀-钼合金中15种微量杂质元素［J］.理化检验-化学分册, 2007,43(3):179-181.
【6】李金英,郭冬发,姚继军,等.电感耦合等离子体质谱新进展［J］.质谱学报, 2002,23(3):164-179.
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