In the present paper, electrochemical methods were used to investigate the behavior of ascorbic acid at a carbon paste electrode modified with 2,2'-((1E)-(1,2 phenylenebis(azanylylidene)) bis(methanylylidene))bis(benzene-1,4-diol) (PBD) and oxidized multiwall carbon nanotubes. The modified carbon paste electrode showed high electrocatalytic activity toward ascorbic acid; the current was enhance...

The present study reports synthesis of MOWS2 nanocomposite followed by its characterization using energy dispersive X-ray spectroscopy (EDS), X-Ray diffraction (XRD) and field emission scanning electron microscopy (FESEM). Chronoamperometry (CHA), differential pulse voltammetry (DPV), and cyclic voltammetry (CV) have been used to examine electro-chemical behaviors of sulfite on MOWS2...

Ethiopian Hibiscus rosa-sinensis Linn contains a variety of bioactive phytochemicals, which possess several biological activities. This study aims to analyze the antibacterial and antioxidant activity aqueous crude flower, leaf, bark extracts rosa-sinensis, as well see geographical effects method development Co2Res2/Glassy carbon electrode. The secondary metabolites were investigated by macerat...

A simple, precise, inexpensive and sensitive voltammetric method has been developed for the determination of gemifloxacin mesylate (GEM) in the presence of tween 80 in the bulk, farmaceutical dosage forms and human urine at gold nanoparticles modified carbon paste electrode (GNCPE). The electrochemical behavior of GEM has been investigated by using cyclic voltammetry (CV) and differential pulse...

The present study examines a new dopamine sensor based on Alumina nanoparticles modified carbon paste electrode (Al2O3NPsCPE). Moreover, the present study focuses on the electrochemical act of the Al2O3NPsCPE for the detection of dopamine by cyclic voltammetry (CV) and differential pulse voltammetry (DPV). There is also a focus on the specification of the prepared modified electrode by electroc...

In this study, a new molecularly imprinted polymer with nanoporous material of zirconium metal-organic frameworks (Zr-MOF/MIP) for diclofenac (DFC) measurement is presented. The Zr-MOF/MIP was prepared by electropolymerization method, the Zr-MOFs were used to increase electrode surface and the DFC and para- aminobenzoic acid (pABA) were used as template and functional monomer, respectively. Zr-...

Chemically modified electrodes (CMEs) based on polymeric films of E-5-((5-isopropyl-3,8-dimethylazulen-1-yl) diazenyl)-1H-tetrazole (L) deposited the surface glassy carbon electrode have been used for recognition heavy metal (Me) ions. The electrochemical study L was done by three methods: differential pulse voltammetry (DPV), cyclic (CV), and rotating disk (RDE). CV, DPV, RDE studies were perf...

We report on the sensing of a hazardous pesticide alphacypermethrin (ACM) using electrochemical technique through nanocomposite film modified electrode. The comprising octadecylamine, chitosan, polyvinyl alcohol-silver nanowires and haemoglobin, shortly (OCPAH), was prepared by Langmuir–Blodgett (LB) deposition various substrates electrodes. composite LB characterised UV-visible spectroscopy sc...

The present study describes the use of a new carbon paste electrode modified by means of Silica nanoparticles prepared by a simple and rapid procedure for the determination of sodium diclofenac (DCF). Moreover, the present study focuses on the characterization of electrochemical impedance spectroscopy (EIS) and scanning electron microscopy (SEM) of the prepared Silica NPs-CPE. In this work, The...

In the present paper, electrochemical methods were used to investigate the behavior of ascorbic acid at a carbon paste electrode modified with 2,2'-((1E)-(1,2 phenylenebis(azanylylidene)) bis(methanylylidene))bis(benzene-1,4-diol) (PBD) and oxidized multiwall carbon nanotubes. The modified carbon paste electrode showed high electrocatalytic activity toward ascorbic acid; the current was enhance...