Analytical applications of mixed-ligand complexes: II. Determination of hydrogen peroxide in the presence of perioxide derivatives |
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Authors: | M Véber LJ Csányi |
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Institution: | Reaction Kinetics Research Group of the Hungarian Academy of Sciences, Department of Inorganic and Analytical Chemistry, Attila József University, Szeged, Hungary |
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Abstract: | The mixed ligand complex TiXOH2O2 was found suitable for the determination of small amounts of hydrogen peroxide in the presence of peroxy acids of sulfur. The pH optimum for the determination depends on the concentrations of the reagents titanium (IV) and xylenol orange]: for 2 × 10?4M titanium (IV) and XO the optimum pH is 1.25. ?520 = 13,200 M?1 cm?1. The method is suitable for determination of 4–40 μM H2O2. Mention is made of the possible causes of the contradictions to be found in the literature concerning the ternary complex. |
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