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Poly(malachite green) film: Electrosynthesis, characterization, and sensor application |
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| Authors: | Qijin Wan Xiaoxia Wang Nianjun Yang |
| Affiliation: | a Hubei Key Lab of Novel Reactor and Green Chemical Technology, School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan 430073, China b Graduate School of Engineering, University of Fukui, Fukui 910-8507, Japan c Department of Chemistry and Biochemistry, New Mexico State University, MSC 3C, Las Cruces 88003-8001, NM, USA |
| Abstract: | Poly(malachite green) films were synthesized electrochemically on the glassy carbon electrode in the potentiodynamic mode. The characterization and growth mechanism of as-prepared films were studied with FT-IR spectroscopy, UV-vis spectroscopy, cyclic voltammetry, chronocoulometry, and electrochemical impedance spectroscopy. Charge transfer and ion transport of poly(malachite green) films were investigated in the aqueous solutions with different types of supporting electrolytes. The poly(malachite green) film coated glassy carbon electrode showed catalytic ability towards ascorbic acid and dopamine. The difference of the anodic peak potential of ascorbic acid on the poly(malachite green) film modified electrode from that of dopamine was 180 mV. Based on their voltammetric responses, the poly(malachite green) film coated glassy carbon electrode was utilized as an electrochemical sensor for the content determination of ascorbic acid and dopamine simultaneously and separately in pharmaceutical and injections. |
| Keywords: | Conducting polymer Electrosynthesis Malachite green |
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