GLUTATHIONE PEROXIDASE-LIKE CATALYTIC ACTIVITIES OF ION-EXCHANGE RESINS MODIFIED WITH METALLOPORPHYRINS

Authors
IWADO A MIFUNE M HARADA R MUKUNO T MOTOHASHI N SAITO Y
Citation
A. Iwado et al., GLUTATHIONE PEROXIDASE-LIKE CATALYTIC ACTIVITIES OF ION-EXCHANGE RESINS MODIFIED WITH METALLOPORPHYRINS, Analytical sciences, 14(3), 1998, pp. 515-518
Citations number
8
Categorie Soggetti
Chemistry Analytical
Journal title
Analytical sciences → ACNP
ISSN journal
09106340
Volume
14
Issue
3
Year of publication
1998
Pages
515 - 518
Database
ISI
SICI code
0910-6340(1998)14:3<515:GPCAOI>2.0.ZU;2-5
Abstract
Some of the ion-exchange resins modified with metalloporphyrins have b een found to exhibit glutathione-peroxidase (GSHPx)-like catalytic act ivities for hydrogen peroxide and cumene hydroperoxide in the oxidativ e reaction of glutathione to disulfide. In particular, the anion-excha nge resin modified with Mn(III)-tetrakis(sulfophenyl)porphine (Mn-TSPP r) exhibited stronger activity than GSHPx, and hence Mn-TSPPr was expe cted to be a good mimesis in place of GSHPx or immobilized GSHPx for t he determination of peroxide.