| HNO_3─KI─MIBK萃取／原子吸收光谱法测定固体废物浸提液中的微量银 |
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| 引用本文： | 齐斐,李春兰,李国钢,齐文启.HNO_3─KI─MIBK萃取／原子吸收光谱法测定固体废物浸提液中的微量银[J].干旱环境监测,1995(2). |
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| 作者姓名： | 齐斐 李春兰 李国钢 齐文启 |
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| 作者单位： | 北京市环境保护监测中心，中国环境监测总站 |
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| 摘 要： | 采用选择性较好的ＨＮＯ３—ＫＩ—ＭＩＢＫ萃取体系对铋渣和尾矿渣浸出液中的痕量银进行预分离富集后，用火焰原子吸收法（ＡＡＳ）进行测定。此法不仅变异系数小（约为３．１％），而且检出限比直接火焰ＡＡＳ法降低两个数量级，达０．５ｎｇ／ｍｌ．另外，还就作品细度对银测定结果的影响原因做了初步探讨。
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| 关 键 词： | 萃取富集，固体废物，浸出液，银，火焰原子吸收法 |
DETERMINATION OF TRACE SIL VER IN LEACH LIQUORS OF SOLID WASTE BY HNO3-KI-MIBK EXTRACTION AND ATOMIC ABSORPTION SPETROMETRY |
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| Qi Fei and Li Chunlan.DETERMINATION OF TRACE SIL VER IN LEACH LIQUORS OF SOLID WASTE BY HNO3-KI-MIBK EXTRACTION AND ATOMIC ABSORPTION SPETROMETRY[J].Arid Environmental Monitoring,1995(2). |
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| Authors: | Qi Fei and Li Chunlan |
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| Abstract: | Trace amounts of silver in leached liquors of bismuth ore slag and talings samples was preconcentrated by selective extraction system of HNO3- KI- MIBK and then determined by FAAS method. The relative standard deviation and detaction limit were 3.1% and 0. 5 ng/ml, resistively. The effect of Sample mesas on the analytical results of silver was also briefly brifly discussed. |
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| Keywords: | Silver Extraction/FAAS Solid wastes Leached liquors |
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