| N─苯甲酰苯基羟胺／吡啶偶氮染料配体交换反应萃取分光光度法测定固体废物浸出液中的微量钒 |
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| 引用本文： | 陈赋杏,李国刚,齐文启.N─苯甲酰苯基羟胺／吡啶偶氮染料配体交换反应萃取分光光度法测定固体废物浸出液中的微量钒[J].干旱环境监测,1995(3). |
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| 作者姓名： | 陈赋杏 李国刚 齐文启 |
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| 作者单位： | 中国环境监测总站 |
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| 摘 要： | 在强酸性介质中，ＶＯ３与Ｎ－苯甲酰苯基羟胺（ＢＰＨＡ）反应生成紫红色络合物，能定量地被ＣＨＣＬ３萃取．萃取液加入２－（５－溴－２－吡啶偶氮）－５－二乙氨基酚（５—Ｂｒ—ＰＡＤＡＰ）后可发生配体交换反应，并生成橙红色的Ｖ（Ｖ）－５—Ｂｒ—ＰＡＤＡＰ络合物，有机相可直接用于光度测定．Ｖ（Ｖ）－５—Ｂｒ－ＰＡＤＡＰ的最大吸收波长为６００ｎｍ，摩尔吸光系数为５．４Ｘ１０￣４Ｌ·ｍｏｌ－１·ｃｍ－１，线性范围为０～０．７６μｇｖ／ｗｌ。
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| 关 键 词： | 钒，配体，交换反应，分光光度法，固体废弃物 |
EXTRACTION/SPECTROPHOTOMETRIC DETER MLNATION OF TRACE AMOUNTS OF VANADIUM IN LEACH LIQUORS OF SOLID WASTES BY THE LIGAND EXCHANCE REAcTION BETWEEN N-BENZOYL-N-PHENYLHDROXYLAMINE AND PYRIDYLAZO DYE |
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| Cheng Fuxin, Li Guogang and Qi Weeqi.EXTRACTION/SPECTROPHOTOMETRIC DETER MLNATION OF TRACE AMOUNTS OF VANADIUM IN LEACH LIQUORS OF SOLID WASTES BY THE LIGAND EXCHANCE REAcTION BETWEEN N-BENZOYL-N-PHENYLHDROXYLAMINE AND PYRIDYLAZO DYE[J].Arid Environmental Monitoring,1995(3). |
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| Authors: | Cheng Fuxin Li Guogang and Qi Weeqi |
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| Institution: | Division of Water; Soil and Soild Waste; China National Environmental Monitoring Centre; Beijing 100012 |
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| Abstract: | |
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| Keywords: | Vanadium Extraction/spectopho- tometry N-benzoyl-n-phenylhydroxylamine 2-(5-bromo-2-pyridylazo)-5-diethylaminophenol Solid wastes |
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