Poly (naphthol green B) modified carbon paste electrode for the analysis of paracetamol and norepinephrine
| Autor: | B.E. Kumara Swamy, Chethan M. Kuskur, H. Jayadevappa |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Detection limit
General Chemical Engineering General Engineering General Physics and Astronomy 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences 0104 chemical sciences Norepinephrine (medication) chemistry.chemical_compound Modified carbon chemistry Electrode Naphthol Green B medicine General Materials Science Differential pulse voltammetry Cyclic voltammetry 0210 nano-technology Nuclear chemistry medicine.drug |
| Zdroj: | Ionics. 25:1845-1855 |
| ISSN: | 1862-0760 0947-7047 |
| Popis: | A stable modified carbon paste electrode based on the poly (naphthol green B) film was prepared by electrochemical polymerization method using cyclic voltammetry. The poly (naphthol green B) modified carbon paste electrode showed excellent high electrocatalytic activity towards the paracetamol (PA) and norepinephrine (NE) oxidation, with significant enhancement of the peak currents in neutral pH (7.0) phosphate buffer solution (0.2 M PBS), at the sweep rate 100 mV/s. The sweep rate and pH (6.2 to 7.8) effects on the voltammograms of PA and NE were studied. The lower limit of detection of PA and NE was found to be 1.6 and 2.0 μM, respectively. The simultaneous determination of PA and NE was investigated by cyclic voltammetry (CV). The peak to peak separation of PA and NE was about 173 mV. The interference study was carried out by differential pulse voltammetry (DPV). The modified electrode showed good sensor for the determination of PA and NE. This method was used for the determination of real sample analysis of PA in commercial tablet and NE in injection sample. |
| Databáze: | OpenAIRE |
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