Application of a Modified CuO Nanoparticles Carbon Paste Electrode for Simultaneous Determination of Isoperenaline, Acetaminophen and N‐acetyl‐L‐cysteine

Abstract

A 1‐[2‐hydroxynaphthylazo]‐6‐nitro‐2‐naphthol‐4‐sulfonate/ CuO nanoparticles modified carbon paste electrode (HNNSCCPE) was constructed and the electro‐oxidation of isoprenaline at the surface of the modified electrode was studied using cyclic voltammetry (CV), chronoamperometry (CHA), and square wave voltammetry (SWV). Under the optimized conditions, the square wave voltammetric peak current of isoprenaline increased linearly with isoprenaline concentrations in the range of 1.0×10−7 to 7.0×10−4 M and detection limit of 5.0×10−8 M was obtained for isoprenaline. The prepared modified electrode exhibits a very good resolution between the voltammetric peaks of isoprenaline, acetaminophen and N‐acetyl‐L‐cysteine which makes it suitable for the detection of isoprenaline in the presence of acetaminophen and N‐acetyl‐L‐cysteine in real samples.

Determination of Riboflavin at Carbon Nanotube Paste Electrodes Modified with an Anionic Surfactant

“…The electrochemical techniques have great attention due to their simple preparation, sensitivity selectivity, and low cost, rapid response time. The usage of chemically modified electrodes offers a tool for boosting the detection capacity of electrodes and various functional materials are used as a modifier for the fabrication of electrochemical sensors …”

“…The usage of chemically modified electrodes offers a tool for boosting the detection capacity of electrodes and various functional materials are used as a modifier for the fabrication of electrochemical sensors. [13][14][15][16][17][18][19][20] A carbon nanotube paste electrode (CNTPE) was repeatedly utilized for the construction of biosensors. Due to their excellent electrical, mechanical properties, low residual current and noise, rapid surface renewal, wide anodic and cathodic potential ranges.…”

Electrochemical determination of ascorbic acid, uric acid and folic acid using carbon paste electrode modified with novel synthesized ferrocene derivative and core–shell magnetic nanoparticles in aqueous media

“…[21][22][23][24][25][26][27] Nanomaterials and nanosensors are important in this regard, [28][29][30][31][32][33][34][35][36][37] especially core-shell nanomaterials, due to their technological applications in biosensors, [38] removal of microbial biofilms, [39] magnetic drug targeting, [40] controlled drug release, [41] antimicrobial activity [42] or diagnostic methods in medicine. [21][22][23][24][25][26][27] Nanomaterials and nanosensors are important in this regard, [28][29][30][31][32][33][34][35][36][37] especially core-shell nanomaterials, due to their technological applications in biosensors, [38] removal of microbial biofilms, [39] magnetic drug targeting, [40] controlled drug release, [41] antimicrobial activity [42] or diagnostic methods in medicine.…”

Analysis of methyldopa in the presence of phenylephrine using electrocatalytic effect of a ferrocene derivative at a surface of feather like La3+/ZnO nano‐flowers modified carbon paste electrode

“…Hence, there is need for easy and rapid methods in bioequivalence studies. One of these methods is electrochemical because of its own benefits, including low cost, rapid, high dynamic range, simple instrumentation in detecting analyte without any need for pretreatments …”