Peroxidase-like catalytic activity of metal complexes of thiacalix[4]arenetetrasulfonate on the modified ion-exchanger and its application to the determination of hydrogen peroxide
J. Odo et al., Peroxidase-like catalytic activity of metal complexes of thiacalix[4]arenetetrasulfonate on the modified ion-exchanger and its application to the determination of hydrogen peroxide, ANAL SCI, 16(9), 2000, pp. 963-966
The peroxidase-like catalytic activity of ion-exchangers modified with some
metal complexes of thiacalix[4]arenetetrasulfonate (Me-TCAS, Me=Fe3+, Fe2, Co2+, Mn2+, Cu2+, Zn2+ and Ni2+) was investigated based on a color reacti
on catalyzed by peroxidase. The ion-exchanger modified with Fe3+-TCAS showe
d the highest activity among the metal complexes tested, and was applied to
the determination of hydrogen peroxide. The calibration curve for the ion-
exchanger modified with Fe3+-TCAS was linear over the range from 10 to 100
mu g of hydrogen peroxide in a 1 ml sample solution. Moreover, the method u
sing glucose oxidase and the ion-exchanger modified with Fe3+-TCAS was appl
ied for the determination of glucose. The ion-exchanger modified with Fe3+-
TCAS may be applicable for the determination of hydrogen peroxide in place
of peroxidase.