Determination of Hydrogen Peroxide by Iron(III) Complex of Thiacalix[4]arenetetrasulfonate on a Modified Ion-Exchanger with Peroxidase-like Catalytic Activity1

Abstract

Calix [n]arenes are of much interest because of their high selectivity and specificity for forming host-guest complexes. 2,3 In analytical chemistry, various calix[n]arene derivatives have been developed by modifying either the upper or lower rim in order to apply them as analytical reagents for separations 4-7 and sensors 8-12 of various ions, molecules, and so on. It has been shown that recently developed thiacalix[n]arenes have a very interesting characteristic: an ability to form very stable metal complexes without modifying the upper and/or lower rims. 13

Catalytic Activity for Decomposition of Hydrogen Peroxide by Metal Complexes of Water-Soluble Thiacalix[4]arenetetrasulfonate on the Modified Anion-Exchangers

“…As described for Fe 3ϩ -TCAS [4] A-500 in the literature, 14,15) it is reasonable that Fe 3ϩ ion is coordinated to the -S-of the epithio groups and the phenolic oxygen atoms of TCAS [4], and is coordinated to TCAS [4] on the modified anion-exchanger with a molar ratio of 1 : 1 as shown in Fig. 6.…”

“…6,8) Moreover, we have recently demonstrated that some metal complexes of thiacalix [4]arenetetrasulfonate on modified anion-exchangers exhibit high peroxidase-like catalytic activity, and are useful not only for the determination of H 2 O 2 but also for the determination of glucose in control serum as a mimesis of peroxidase in clinical analyses. 14,15) Accordingly, in this study, the catalase-like catalytic activity of metal complexes of thiacalix [4]arenetetrasulfonate on modified anion-exchangers was investigated. To the best of our knowledge, no report has been published on the catalaselike catalytic activity of metal complexes of thiacalix[n]-arenes and calix[n]arenes.…”

Application of Crude Extract of Kohlrabi (Brassica oleracea gongylodes) as a Rich Source of Peroxidase in the Spectrofluorometric Determination of Hydrogen Peroxide in Honey Samples

“…[1][2][3][4] Therefore the determination of hydrogen peroxide is important in characterization and selection of honey samples for use as an antimicrobial agent. Several analytical methods have been proposed for the determination of H2O2, including spectrophotometry, [5][6][7][8] spectrofluorometry, 9-13 chemiluminescence [14][15][16][17] and electrochemical techniques. [18][19][20][21] Most of these methods are enzymatic methods that are of interest because of their high sensitivity and selectivity.…”

Spectrofluorometric Determination of Hydrogen Peroxide Based on Oxidative Catalytic Reactions of p-Hydroxyphenyl Derivatives with Metal Complexes of Thiacalix[4]arenetetrasulfonate on a Modified Anion-Exchanger

“…14 Moreover, we have developed new methods for the spectrophotometric determination of hydrogen peroxide using the peroxidase-like catalytic activity of Fe 3+ -TCAS [4]A-500, and applied them to measurements of glucose and uric acid. 14,15 It has been demonstrated that methods employing Fe 3+ -TCAS [4]A-500 are effective for determining trace amounts of vital compounds in clinical analyses.…”