| 以季胺盐(TMA·Cl)萃取、光度法测定痕量汞的研究 |
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| 引用本文： | 刘奎敏,卢秀娟,杜乃林. 以季胺盐(TMA·Cl)萃取、光度法测定痕量汞的研究[J]. 哈尔滨商业大学学报(自然科学版), 2000, 16(1): 63-66 |
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| 作者姓名： | 刘奎敏 卢秀娟 杜乃林 |
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| 作者单位： | 1. 大庆市环保局，黑龙江大庆，163000
2. 黑龙江大学环境科学研究所黑龙江哈尔滨，150080 |
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| 摘 要： | 研究了以季胺盐即氯化三辛基甲基胺的二甲苯溶液为萃取剂，在HCl介质中痕量汞的萃取和分光光度法测定。对萃取、分离定量的最适条件，选用适宜的反萃取剂以及汞的萃取体系进行了详细研究。结果表明，桑德尔灵敏度为4.8×10-4μg/cm2,相比Vw/Vo=40，汞量在0～0.5μg范围内遵守郎伯—比尔定律，成功的建立了一个新的测定痕量汞的方法。
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| 关 键 词： | 溶剂萃取；氯化三辛基甲基胺；痕量汞 |
| 文章编号： | 1004-1842(2000)01-0063-04 |
| 修稿时间： | 1999-12-19 |
Extraction and Spectrophotometric Determination of Trace Hg in a Medium of HCl with Trioctylemihylammonium Chloride |
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| Liu Kui-min,LU Xiu-juan,Du Nai-lin. Extraction and Spectrophotometric Determination of Trace Hg in a Medium of HCl with Trioctylemihylammonium Chloride[J]. Journal of Harbin University of Commerce :Natural Sciences Edition, 2000, 16(1): 63-66 |
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| Authors: | Liu Kui-min LU Xiu-juan Du Nai-lin |
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| Abstract: | The extraction of trace amounts of Hg in amedium of HCl with trioctylmethylammonium chloride in dimethylbenzene and the subsequent spectrophorometric determination is described. The optimum conditions of extraction and separation, appropriate reextractants and the extraction systems of Hg have been investigated. The Sandall Sensitivity is 4.8×10-4μg/cm2. Under a phase ratio of extraction Vw/V0=40, the linear range for the deternination of Hg is 0～5 μg/ml. The method is simple, practical and reproducible. |
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| Keywords: | solvent extraction trioctylmethylmethylammonium chloride spectrophotometry, trace amounts of Hg |
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