Electrochemical determination of atypical antipsychotic drug quetiapine using nano-molecularly imprinted polymer modified carbon paste electrode

In this research, the advantages of molecularly imprinted polymer (MIP) materials have been used to develop a new electrochemical sensor for determination of quetiapine (QTP) drug. MIP nanoparticles were synthesized by precipitation polymerization method and used as QTP recognition elements in the composition of modified carbon paste electrode (CPE) for selective and sensitive assay of this drug. Cyclic voltammetry (CV) and square wave voltammetry (SWV) techniques were used for electrochemical analysis. Some parameters affecting the sensor performance were optimized and under optimal conditions, the proposed sensor showed linear responses with QTP concentration in the range of 1.6 × 10^-8 to 2.5 × 10^-6 M (R² = 0.9964). The limits of detection (LOD) and quantification (LOQ) were calculated 5.04 × 10^-9 M and 1.68 × 10^-8 M respectively. Also, the amounts of %RSD for evaluation of repeatability and reproducibility of the proposed sensors were respectively obtained 2.19 and 3.02%. The method was successfully applied to determination of QTP in its pharmaceutical formulation and human urine samples.

Electroanalytical determination of diazepam in tablet and human serum samples using a multiwalled carbon nanotube embedded molecularly imprinted polymer-modified carbon paste electrode

In this study a new MWCNT–MIP nanocomposite modified carbon paste electrode for determination of diazepam has been developed.

Low loaded palladium nanoparticles on ethylenediamine-functionalized cellulose as an efficient catalyst for electrochemical hydrogen production

In this study, for the first time, a carbon paste electrode was modified with palladium nanoparticles supported on ethylenediamine-functionalized cellulose, and its performance for electrocatalytic hydrogen production was examined.