Analysis of Metals by Solid-Liquid Separation after Liquid-Liquid Extraction. Spectrophotometric Determination of Some Metals by Extraction of Metal Complexes with Molten Naphthalene
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概要
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A procedure is described for the spectrophotometric determination of metals after extraction with molten naphthalene. Some metal ions react in aqueous solution with complex-forming reagents such as oxine, 2-methyl-oxine, dimethylglyoxime or α-benzil dioxime to form water-insoluble complexes in certain pH ranges, the complexes being easily extracted into molten naphthalene. The extracted mixture of metal complex and naphthalene is dissolved in dimethylformamide and the amount of each metal is determined spectrophotometrically. The working range of metal ion concentration and effect of various factors such as pH, amount of reagent and naphthalene were studied, and the molar absorptivity, sensitivity and relative standard deviation evaluated.
- 公益社団法人 日本化学会の論文
著者
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Satake Masatada
Faculty Of Engineering Fukui University
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Fujinaga Taitiro
Faculty of Science, Kyoto University
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Yonekubo Tatsuo
Faculty of Engineering, Fukui University
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- Analysis of Metals by Solid-Liquid Separation after Liquid-Liquid Extraction. Spectrophotometric Determination of Some Metals by Extraction of Metal Complexes with Molten Naphthalene
- Spectrophotometric determination of palladium(II) by extraction of its 1-pyrrolidinecarbodithioate into molten naphthalene.
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