| 原子吸收光谱法测定浓海水中的微量锂 |
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| 引用本文： | 杨淑清,竺柏康,王路辉.原子吸收光谱法测定浓海水中的微量锂[J].浙江海洋学院学报(自然科学版),2012,31(2):153-156. |
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| 作者姓名： | 杨淑清 竺柏康 王路辉 |
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| 作者单位： | 浙江海洋学院石油化工学院,浙江舟山,316000 |
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| 基金项目： | 国家科技支撑计划项目，浙江省重大科技专项 |
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| 摘 要： | 采用空气-乙炔火焰原子吸收光谱法测定浓海水中微量金属锂离子时,干扰主要来自浓海水中共存的高浓度的阳离子。探讨了共存的主要阳离子对锂离子测定的影响,并分析了消除高浓度阳离子干扰的方法。结果表明:Ca2+和Mg2+是主要干扰元素,可以采用标准加入法消除共存的高浓度阳离子的干扰;锂在0.13～1.92 mg/L范围内线性关系良好,平均回收率为99.62%。
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| 关 键 词： | 原子吸收光谱法 锂含量 浓海水 标准加入法 |
Determination of Rrace Lithium （1＋） in Concentrated Brine by Atomic Absorption Spectrometry |
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| YANG Shu-qing,ZHU Bai-kang,WANG Lu-hui.Determination of Rrace Lithium （1＋） in Concentrated Brine by Atomic Absorption Spectrometry[J].Journal of Zhejiang Ocean University(Natural Science Edition),2012,31(2):153-156. |
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| Authors: | YANG Shu-qing ZHU Bai-kang WANG Lu-hui |
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| Affiliation: | (School of Petroleum & Chemical Engineering of Zhejiang Ocean University,Zhoushan 316000,China) |
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| Abstract: | The trace Li+ in concentrated brine was determined by air-acetylene flame atomic absorption spectrometry at the wave length of 670.8 nm.The disturbance from coexisting cations on the lithium(1+) was investigated.The disturbance was from high concentration ions of Ca2+ and Mg2+.The ions of Na+ and K+ had little affection.The standard addition method is an effective way to eliminate the disturbance of main cations.The experimental results indicated that the linear range for lithium was 0.13-1.92 mg/L and average recovery was 99.62%. |
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| Keywords: | atomic absorption spectrometry lithium content concentrated brine standard addition method |
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