A theoretical study of an electrode mechanism where the reaction (E) is preceded by a chemical that takes place solely at surface (Chet) presented under conditions square-wave voltammetry (SWV). Rigorous mathematical solutions in form integral equations derived means Laplace transforms are for concentration all species involved mechanism, yielding explicit recurrent formulas simulation voltamme...

A multiwall carbon nanotubes-modified carbon paste electrode (MWCNTs/MCPE) wasfabricated and used to study the electrooxidation of penicillamine (PA) by electrochemicalmethods in the presence of methyldopa (MDOP) as a homogeneous mediator. Theelectrochemical oxidation of PA on the new sensor has been carefully studied. The kineticparameters such as electron transfer coefficient, α, and catalyti...

conclusions the results of this study show that lh in different pharmaceutical preparations could be determined with good reliability. in addition, the results reveal that the equal numbers of electrons and protons are involved in the oxidation of lh and the irreversible oxidation of an analyte was performed via amine groups of lh molecule. background lidocaine hydrochloride (lh) is one of the ...

Commercially available Pt screen printed electrodes (SPEs) have been employed as possible electrode materials for methylamine (MA) and hydrogen chloride (HCl) gas detection. The room temperature ionic liquid (RTIL) 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([C₂mim][NTf₂]) was used as a solvent and the electrochemical behaviour of both gases was first examined using cyclic vo...

The electrochemical properties of uric acid (UA) were determined by cyclic voltammetry (CV) and square wave (SWV) at a carbon paste electrode modified with aluminum oxide nanoparticles (Al2O3NP/CPE) in 0.05 M pH 5.0 phosphate buffer. adsorption the molecule on Al2O3NP/CPE investigated number electrons transferred reaction was calculated. A new voltammetric method for determination UA human seru...

A multiwall carbon nanotubes-modified carbon paste electrode (MWCNTs/MCPE) wasfabricated and used to study the electrooxidation of penicillamine (PA) by electrochemicalmethods in the presence of methyldopa (MDOP) as a homogeneous mediator. Theelectrochemical oxidation of PA on the new sensor has been carefully studied. The kineticparameters such as electron transfer coefficient, α, and catalyti...

In this work, a sensitive dual mode competitive electrochemical immunosensor based on differential pulse voltammetry (DPV) and square wave (SWV) response modes for quantitative determination of dibutyl phthalate (DBP) was successfully established. According to diethylenetriamine (DETA) assisted hydrothermal strategy, novel N-doped graphene/CoSe2 nanobelt composite prepared. Afterwards, PEI func...

Novel hybrid carbon materials such as activated carbon-carbon nanotubes (AC-CNTs) and spheres/activated (CSs/AC-CNTs) based on (AC) derived from the pits of Algerian date palm have been prepared characterized. In addition, paste electrodes graphite (GC) cavity microelectrode (CME) modified with these were used to detect gallic acid at pH = 7 using square wave voltammetry method (SWV). The condu...

Stock pyocyanin at 5 mg/mL in dimethyl sulfoxide was diluted in TSB, TSB agar, and Kings A agar to concentrations from 0 to 100 μM. TSB samples were scanned using square wave voltammetry (SWV) on three separate disposable carbon electrodes three times each from -0.5 to 0.0 V at a frequency and amplitude voltage of 15 Hz and 50 mV, respectively. Agar samples were scanned three times on a single ...