Protein-film voltammetry: A theoretical study of the temperature effect using square-wave voltammetry
نویسندگان
چکیده
منابع مشابه
Protein-film voltammetry: a theoretical study of the temperature effect using square-wave voltammetry.
Square-wave voltammetry of surface redox reactions is considered as an adequate model for a protein-film voltammetric setup. Here we develop a theoretical approach to analyze the effects of temperature on square-wave voltammograms. The performed simulations address the surface redox reactions featuring slow, modest and fast electron transfer. The theoretical calculations show that the temperatu...
متن کاملDetermination of clopidogrel using square wave voltammetry
The determination of clopidogrel, an antiplatelet agent, was performed at a gold electrode in pH 3.7 acetate buffer using cyclic voltammetry (CV) and square wave voltammetry (SWV). Each voltammogram was characterized by the well defined peak at approximately 1.0 V. The current of anodic stripping peak exhibited a linear dependence on the clopidogrel concentration in the range from 317.89 to 935...
متن کاملSquare Wave Anodic Stripping Voltammetry at the Mercury Film Electrode: Theoretical Treatment
The theoretical treatment of square wave anodic stripping voltammetry at a mercury film electrode Is presented. Numerlcal calculations, using the step method, show that the dlfferentlal current voltammograms are symmetrical and the peak potentlal, E,, shlfts to more negaflve potentials (anEd8 log A = 59.2 mV) with decreasing film thickness parameter A = / / ( D R ~ ) " * . For A < 0.3, peak cur...
متن کاملSurface Catalytic Mechanism in Square-Wave Voltammetry
A pseudo-first-order catalytic mechanism in which both reactant and product of the redox reaction are strongly immobilized on the electrode surface is theoretically analyzed under conditions of square-wave voltammetry (SWV). A mathematical procedure is developed for diffusionless conditions. The relationships between the properties of the voltammetric response and both the kinetic parameters of...
متن کاملRedox properties of several bacterial ferredoxins using square wave voltammetry.
The equilibrium reduction potential of the 2[4Fe-4S] ferredoxin (Fd) isolated from four different bacterial strains was determined at a methyl viologen-modified gold electrode using square wave voltammetry. The observed reduction potential at pH 8 for Clostridium thermoaceticum Fd was -385 mV; Clostridium pasteurianum, -393 mV; Clostridium thermosaccharolyticum, -408 mV; and Chromatium vinosum,...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Biophysical Chemistry
سال: 2008
ISSN: 0301-4622
DOI: 10.1016/j.bpc.2008.06.011