| 萃取色谱法富集原子吸收法测定环境水中超痕量金属元素──两种萃取剂的比较 |
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| 引用本文： | 陈泽民,徐莲芬.萃取色谱法富集原子吸收法测定环境水中超痕量金属元素──两种萃取剂的比较[J].光谱学与光谱分析,1995(4). |
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| 作者姓名： | 陈泽民 徐莲芬 |
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| 作者单位： | 廊坊师专 |
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| 摘 要： | 本文研究并比较了分别以８－羟基喹啉和巯基苯骈噻唑为萃取剂，以活性硅胶为载体的柱式萃取色谱法对环境水中Ｚｎ、Ｃｕ、Ｐｂ、Ｃｄ、Ｆｅ、Ｃｏ、Ｎｉ和Ｍｎ的最佳富集和洗脱条件。实验证明，后者明显优于前者。以巯基苯骈噻唑为萃取剂的色谱柱对金属元素的吸附具有快速、完全、寿命长和重现性好等特点。在ｐＨ＝７～８之间回收率可达９８％以上，富集倍数为２００倍。
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| 关 键 词： | 环境水，痕量元素，萃取色谱，原子吸收法 |
DETERMINATION OF ULTRA-TRACE METAL ELEMENTS IN ENVIRONMENTAL WATER ENRICHED WITH EXTRACTION CHROMATOGRAPHY BY ATOMIC ABSORPTION SPECTROMETRY |
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| CHEN Zemin and XU Lianfen.DETERMINATION OF ULTRA-TRACE METAL ELEMENTS IN ENVIRONMENTAL WATER ENRICHED WITH EXTRACTION CHROMATOGRAPHY BY ATOMIC ABSORPTION SPECTROMETRY[J].Spectroscopy and Spectral Analysis,1995(4). |
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| Authors: | CHEN Zemin and XU Lianfen |
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| Abstract: | We studied the optimized absorption and elution conditions of trace metal elements in environment water by extraction chromatography with 8-hydroxyquinoline or 2-mercaptobenzothiazole as the extracting agent and active silica as the carrier. Experiments show that the extraction chromatography of 2-mercaptobenzothiazole is better as compared with 8-hydroxyquinoline. The recovery is over the range of 98%, and the enrichment coefficient is 200. |
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| Keywords: | Environment water Trace elements Extraction chromatography AAS |
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