Determination of Malachite Green in Aquaculture Water by Adsorptive Stripping Voltammetry
| Autor: | Dan Zhu, Martina Piano, Gang Chen, Qiangqiang Li, Kevin C. Honeychurch |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Chromatography
Stripping (chemistry) Calibration curve 010401 analytical chemistry Biochemistry (medical) Clinical Biochemistry 02 engineering and technology 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences Biochemistry Redox 0104 chemical sciences Analytical Chemistry chemistry.chemical_compound chemistry Adsorptive stripping voltammetry Differential pulse voltammetry Malachite green Cyclic voltammetry 0210 nano-technology Spectroscopy Nuclear chemistry |
| Zdroj: | Analytical Letters. 49:1436-1451 |
| ISSN: | 1532-236X 0003-2719 |
| DOI: | 10.1080/00032719.2015.1104321 |
| Popis: | An adsorptive stripping voltammetric method for the determination of malachite green in aquaculture water has been developed. Initial studies were made using the cyclic voltammetry of malachite green at a glassy carbon electrode in 0.1 M phosphate buffer from pH 2 to 10. The redox behavior observed for malachite green was verified by the characterization of malachite green and its reduction product, leucomalachite green. Furthermore, leucomalachite green was found not to interfere with the determination of malachite green at pH 7.4, the optimum pH for malachite green determination. As a result, further studies were performed using adsorptive stripping voltammetry for the determination of malachite green in aquaculture water. The voltammetric waveform, accumulation potential, and accumulation time were optimized. The calibration plot was linear from 0.2 µM to 1.2 µM for malachite green using differential pulse voltammetry with a sensitivity of 0.8311 µA/µM. Using the method of multiple standard add... |
| Databáze: | OpenAIRE |
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