Analytical Sciences
Online ISSN : 1348-2246
Print ISSN : 0910-6340
ISSN-L : 0910-6340
Original Papers
Glutathione Peroxidase-Like Catalytic Activities of Ion-Exchange Resins Modified with Metalloporphyrins
Akimasa IWADOMasaki MIFUNERumiko HARADA (nee NOGUCHI)Takashi MUKUNONoriko MOTOHASHIYutaka SAITO
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1998 Volume 14 Issue 3 Pages 515-518

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Abstract

Some of the ion-exchange resins modified with metalloporphyrins have been found to exhibit glutathione-peroxidase (GSHPx)-like catalytic activities for hydrogen peroxide and cumene hydroperoxide in the oxidative reaction of glutathione to disulfide. In particular, the anion-exchange resin modified with Mn(III)-tetrakis(sulfophenyl)porphine (Mn-TSPPr) exhibited stronger activity than GSHPx, and hence Mn-TSPPr was expected to be a good mimesis in place of GSHPx or immobilized GSHPx for the determination of peroxide.

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© 1998 by The Japan Society for Analytical Chemistry
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