クロルプロマジン : 過酸化水素反応系における微量元素の接触作用を利用した吸光光度定量法及びその反応速度論的研究
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概要
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In the catalytic method, a kinetic-mechanistic study is important in optimizing the experimental conditions and in extending the analytical utility of the reactions, since a rate equation derived by a kinetic study permits an accurate prediction of the reaction over a wide range of reaction conditions. In this study, the catalytic effects of some trace elements on the chlorpromazine(CP)-hydrogen peroxide reaction were studied both analytically and kinetically. The oxidation of CP proceeds by two independent and parallel reactions: one of them proceeds through a red intermediate; the other goes directly to a colorless sulfoxide. It was found that iodide and iron(II, III) catalyzed the former reaction, and tungsten(VI) catalyzed the latter reaction. Thus, spectrophotometric determinations of iodide, iron and tungsten(VI) based on their catalytic effects on the reactions were developed. According to the results of a kinetic study, mechanisms for both the catalyzed and uncatalyzed reactions were proposed. It was also observed that the sulfoxide formation reaction was catalyzed by molybdenum(VI). The kinetic behavior of molybdenum(VI) and tungsten(VI) were investigated in detail in order to derive their rate equations. The optimum conditions for a differential determination were easily established using the equations. A kinetic study is the most favorable for systematically finding the optimum conditions for a differential determination.
- 社団法人日本分析化学会の論文
- 1998-11-05
著者
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冨安 卓滋
筑波大学:(現)鹿児島大学理学部地球環境科学科
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Tomiyasu Takashi
Graduate School Of Science And Engineering Kagosima University
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冨安 卓滋
鹿児島大学大学院理工学研究科地球環境科学専攻
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