Effect of Di-2-ethylhexyl Sodium Sulfosuccinate Reversed Micelles on the Iron-Tetrasulfonatophthalocyanine-Catalyzed Fluorogenic Oxidation Reaction of L-Tyrosine with Hydrogen Peroxide.

WEI Ling, CHEN Xiao-Lan, YANG Huang-Hao, XU Jin-Gou

doi:10.2116/analsci.18.585

Effect of Di-2-ethylhexyl Sodium Sulfosuccinate Reversed Micelles on the Iron-Tetrasulfonatophthalocyanine-Catalyzed Fluorogenic Oxidation Reaction of L-Tyrosine with Hydrogen Peroxide.

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WEI Ling

The Key Laboratory of Analytical Science of MOE, Department of Chemistry, Xiamen University
CHEN Xiao-Lan

The Key Laboratory of Analytical Science of MOE, Department of Chemistry, Xiamen University
YANG Huang-Hao

The Key Laboratory of Analytical Science of MOE, Department of Chemistry, Xiamen University
XU Jin-Gou

The Key Laboratory of Analytical Science of MOE, Department of Chemistry, Xiamen University

書誌事項

公開日: 2002

資源種別: journal article

DOI

10.2116/analsci.18.585

公開者: 社団法人日本分析化学会

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説明

The catalytic behavior of iron tetrasulfonatophthalocyanine (FeTSPc) for the oxidation reaction of L-tyrosine with H₂O₂ in a di-2-ethylhexyl sodium sulfosuccinate (AOT) reversed-micellar system (AOT/cyclohexane) was studied. It was indicated that the reversed micelles could not only enhance the catalytic activity of FeTSPc, but could also increase the fluorescence intensity of the product. Factors that may influence the catalytic reaction, including the concentration of AOT, the cosolubilized water, temperature and pH, were further examined. The possibility of its analytical application was also tested. Experimental results show that the calibration graphs for the determinations of FeTSPc and H₂O₂ under optimum conditions are linear over the range of 1.0 × 10^-8 - 1.0 × 10^-6 mol L^-1 and 0.0 - 3.0 × 10^-6 mol L^-1, respectively, with detection limits of 1.1 × 10^-9 mol L^-1 and 3.1 × 10^-9 mol L^-1 for FeTSPc and H₂O₂, respectively.