Differential pulse voltammetric determination of eugenol at a pencil graphite electrode
| Autor: | Yusuf Dilgin, Didem Giray Dilgin, Bensu Ertek, Özlem Sağlam |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Detection limit
Materials science 010401 analytical chemistry Analytical chemistry Bioengineering 02 engineering and technology Buffer solution 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences 0104 chemical sciences Electrochemical gas sensor Biomaterials Eugenol chemistry.chemical_compound chemistry Mechanics of Materials Electrode Differential pulse voltammetry Cyclic voltammetry 0210 nano-technology Electrodes |
| Zdroj: | Materials scienceengineering. C, Materials for biological applications. 60 |
| ISSN: | 1873-0191 |
| Popis: | In this study, the electrochemical behavior of eugenol, a widely used herbal drug, was investigated at a pencil graphite electrode (PGE). A low-cost, disposable, sensitive and selective electrochemical sensor is proposed for the determination of eugenol by recording its differential pulse voltammograms in Britton-Robinson buffer solution containing 0.1 M KCl with pH of 2.0 at the PGE. The PGE displayed a very good electrochemical behavior with significant enhancement of the peak current compared to a glassy carbon electrode. Under experimental conditions, the PGE had a linear response range from 0.3 μM to 50.0 μM eugenol with a detection limit of 0.085 μM (based on 3S(b)). Relative standard deviations of 2.4 and 4.8% were obtained for five successive determinations of 30.0 and 5.0 μM eugenol, respectively, which indicate acceptable repeatability. This voltammetric method was successfully applied for the direct determination of eugenol in real samples. The effect of various interfering compounds on the eugenol peak current was also studied. |
| Databáze: | OpenAIRE |
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