Spectrophotometric determination of palladium(II) by extraction of its 1-pyrrolidinecarbodithioate into molten naphthalene.
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概要
- 論文の詳細を見る
A new spectrophotometric method for the determination of palladium after extraction of its 1-pyrrolidinecarbodithioate into molten naphthalene has been developed. Palladium forms a water-insoluble, thermally stable 1:2 complex with 1-pyrrolidinecarbodithioate which is easily extracted into molten naphthalene in the pH range of 3.0–6.0. At room temperature, solid naphthalene containing the metal-complex is dissolved in chloroform (10 ml). It has an absorption maximum in the range of 336–342 nm. Beer's law holds in the concentration range of 2.5–90.0 μg of palladium in 10 ml of chloroform solution. The molar absorptivity(1 mol<SUP>−1</SUP> cm<SUP>−1</SUP>) and sensitivity (μg/cm<SUP>2</SUP>) are found to be 6.4×10<SUP>3</SUP> and 0.0166, respectively. Samples containing 30 μg of palladium gives a mean absorbance of 0.18 with a standard deviation of 0.0025. Other factors such as amount of reagent and naphthalene, pH, aqueous phase volume and diverse ions have been examined. The method has been applied to the analysis of some alloys.
- 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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Puri B.
Department Of Chemistry Indian Institute Of Technology
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Kumar Avadesh
Department Of Chemistry Indian Institute Of Technology
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Hussain M.
Department of Chemistry, Indian Institute of Technology
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