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A spectroelectrochemical study of microperoxidase at bare and gold-plated RVC thin-layer electrodes

1990; Elsevier BV; Volume: 1034; Issue: 3 Linguagem: Inglês

10.1016/0304-4165(90)90054-z

1872-8006

Silvia Zamponi, Roberto Santucci, Maurizio Brunori, Roberto Marassi,

Analytical Chemistry and Sensors

Direct electrochemistry of microperoxidase (the heme-undecapeptide from cytochrome c) has been followed at a bare and a gold plated RVC thin-layer electrode, using the spectropotentiostatic method or voltabsorptometry. Both techniques yield 'clean' and undistorted signals; their analysis easily provides quantitative information for the electrochemical parameters of microperoxidase and shows that spectroelectrochemistry is a powerful method to study the redox behavior of metalloproteins or their active site fragments.