Halloysite is naturally occurring nanotubular clay with a phyllosilicate structure and widely used as solid support to modify various redox mediators. We prepared hemin modified halloysite (Hemin/HNT) by simple impregnation method, in which known amount of was dispersed ethanolic solution 1% reacted for 12 h. The resulting pure Hemin/HNT employed electrocatalyst the electrochemical oxidation ni...

The knowledge of the host-guest complexes using cyclodextrins (CDs) has prompted an increase in the development of new formulations. The capacity of these organic host structures of including guest within their hydrophobic cavities, improves physicochemical properties of the guest. In the case of pesticides, several inclusion complexes with cyclodextrins have been reported. However, in order to...

The work demonstrates the development of an electrochemical sensor for quantification Chloramphenicol (CA) using pencil graphite electrode (PGE) modified with Gadolinium tungstate nano flakes and carbon fibers composite (PGE/GWNfs/CNFs). was further characterized confirmed by X-ray diffraction (XRD), energy-dispersive spectroscopy, transmission electron microscopy analysis. prepared GWNfs/CNFs ...

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...

Hydroquinone (HQ) was electrochemically measured using convolutive cyclic voltammetry and differential pulse (DPV) on a nano-architecture mesoporous platinum film grown from hexagonal liquid crystalline template of C16EO8 surfactant in 1.0 mol/l HClO4. The HQ voltammograms produced one oxidative peak the forward sweep potential reductive reverse sweep. effect concentration investigated differen...

In the present work, a nanocomposite of two-dimensional WSe2 nanosheets with poly(3,4‑ethylenedioxythiophene (WSe2@PEDOT) was prepared by facile hydrothermal method and characterized in terms structural morphological analyses. This nano­composite used to modify glassy carbon electrode for construction an electrochemical sensing platform simultaneous determination dopamine (DA) uric acid (UA) pr...

Blood is an important type of forensic evidence because it can be used for source identification, toxicological analyses, and bloodstain pattern interpretation. Determining the time that bloodshed occurred, often described as bloodstain’s since deposition (TSD), has implications crime scene investigation. In this work, we focus on using electrochemical methods to monitor gradual oxidative chang...

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...

in this work poly eriochrome black t (ebt) was electrochemically synthesized on the glassy carbon electrode as electrode modifier. on the modified electrode, voltammetric behavior of isoniazid (inh) was investigated. the poly (ebt)-modified glassy carbon electrode has excellent electrocatalytic ability for the electrooxidation of isoniazid. this fact was appeared as a reduced overpotential of i...

A selective electrochemical method for the determination of uric acid was developed by using nano poly cresol red modified glassy carbon electrode. This new material has been characterized by Scanning Electron Microscopy, cyclic voltammetry and Differential pulse voltammetry. This modified electrode shows excellent electrocatalytic activity towards the oxidation of uric acid in the presence of ...