| 溶剂萃取非水介质氢化物发生-无色散原子荧光光谱法测定痕量锑 |
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| 引用本文： | 金泽祥,汤志勇,周俊明,龚育. 溶剂萃取非水介质氢化物发生-无色散原子荧光光谱法测定痕量锑[J]. 光谱学与光谱分析, 1992, 0(4) |
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| 作者姓名： | 金泽祥 汤志勇 周俊明 龚育 |
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| 作者单位： | 中国地质大学应用化学系，中国地质大学应用化学系，武汉管理干部学院，武汉管理干部学院 430074 武汉，430074 武汉 |
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| 摘 要： | 本文提出了用乙醇作为NaBH_4的溶剂,APDC-MIBK萃取,有机相氢化物发生原子荧光光谱法测定水样中痕量锑的新方法。与已报道的二甲基甲酰胺(DMF)作为NaBH_4的溶剂相比较,乙醇具有价廉、无毒性以及荧光背景小和可以在较低酸度下发生氢化物的特点。对非水介质氢化物发生法的推广应用具有一定的实用价值。
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| 关 键 词： | 溶剂萃取 氢化物发生 原子荧光光谱法 Sb测定 |
SOLVENT EXTRACTION-NONDISPERSIVE ATOMIC FLUORESCENCE SPECTROMETRIC DETERMINATION OF MICROAMOUNTS OF ANTIMONY BY HYDRIDE GENERATION IN NON-AQUEOUS MEDIA |
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| JIN Zexiang,TANG Zhiyong. SOLVENT EXTRACTION-NONDISPERSIVE ATOMIC FLUORESCENCE SPECTROMETRIC DETERMINATION OF MICROAMOUNTS OF ANTIMONY BY HYDRIDE GENERATION IN NON-AQUEOUS MEDIA[J]. Spectroscopy and Spectral Analysis, 1992, 0(4) |
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| Authors: | JIN Zexiang TANG Zhiyong |
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| Affiliation: | JIN Zexiang,TANG Zhiyong Department of Applied Chemistry,China University of Geosciences,430074 Wuhan ZHOU Junming,GONG Yu Department of Chemistry,Wuhan Management College,Wuhan |
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| Abstract: | A method for covalent hydride generation in non-aqueous extraction phase has been developed for determination of antimony by nondispersive atomic fluorescence spectrometry. Antimony is extracted by ammonium pyrrolidine-1-carb-odithioate (APDC) into methyl isobutyl ketone (MIBK), and after hydride generation is carried out in the organic phase by sodium tetrahydroborate in ethanol and anhydrous acetic acid. Compared with N, N-dimethylformamide (DMF) used previously, ethanol is cheaper, non-poison, lower fluorescence background and hydride can be generated in lower acidity. The method is very sensitive and precise. |
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| Keywords: | Solvent extraction Hydride generation Atomic fluorescence spectrometry Determination of antimony |
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