Voltammetric Determination of Vanadium(V) and Vanadium(IV) through the Formation of a 12-Molybdovanadate(V) Complex.
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- HIMENO Sadayuki
- Department of Chemistry, Faculty of Science, Kobe University
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- KUSUYAMA Kohji
- Department of Chemistry, Faculty of Science, Kobe University
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- HASHIMOTO Masashi
- Department of Chemistry, Faculty of Science, Kobe University
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- ISHIO Nobuhiro
- Department of Chemistry, Faculty of Science, Kobe University
書誌事項
- タイトル別名
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- Voltammetric Determination of Vanadium
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A simple voltammetric method has been developed for the determination of V(V) and V(IV). When a mixture of V(V) and V(IV) is added last of all to a 50 mM Mo(VI)-0.3 M HCl-70%(v/v) CH3CN system, only V(V) reacts with Mo(VI) to form a 12-molybdovanadate(V) complex which undergoes a two-step reduction at the glassy carbon (GC) electrode; the reduction current is directly proportional to the V(V) concentration in the mixture. On the other hand, when HCl is added last after heating the Mo(VI)-CH3CN system containing a mixture of V(V) and V(IV) at 60°C for 10 min, V(IV) is com-pletely oxidized to V(V), and the total concentration of vanadium is determined. The V(IV) concentration is determined by subtracting the V(V) concentration before oxidation from the total concentration of vanadium. Interferences from foreign ions are also discussed.
収録刊行物
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- Analytical Sciences
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Analytical Sciences 14 (4), 681-685, 1998
社団法人 日本分析化学会
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詳細情報 詳細情報について
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- CRID
- 1390282679232530944
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- NII論文ID
- 130004439882
- 10002416298
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- NII書誌ID
- AA10500785
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- COI
- 1:CAS:528:DyaK1cXltlCksLo%3D
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- ISSN
- 13482246
- 09106340
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- NDL書誌ID
- 4547624
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可