5-Br-PADAP萃取光度法测定化探样品中的微量锑 |
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引用本文: | 林猷壁. 5-Br-PADAP萃取光度法测定化探样品中的微量锑[J]. 岩石矿物学杂志, 1984, 3(1): 73-75 |
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作者姓名: | 林猷壁 |
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作者单位: | 中国地质科学院岩矿测试技术研究所 |
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摘 要: | 资料[1、2]研究了5-Br-PADAP和碘化钾同三价锑能够形成蓝绿色的三元络合物,且能被苯萃取。但未见应用于岩矿中微量锑的测定。资料[3]介绍了碘化铵能对岩矿样品进行挥发性分解,锑以三价锑和五价锑的形式挥发出来,达到分离目的。本文在前人工作的基础上,进行了条件试验,采用碘化铵既分解样品,又能代替碘
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Extraction-Spectrophotometric Determination of Microamount Antimony with 5-Br-PADAP in Geochemical Sample |
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Abstract: | In this paper the optimum condition for Sb-I-S-Br-PADAP complexformation in the presence of iodide has been studied. The interference of otherelements can be eliminated by extracted of complex with benzene from 0 .75Nsulfuric acid. The detection limit is 0.02 ug/ml, and the color is stable for at least 10 hours. |
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