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Sensors 2008, 8(8), 4560-4581; doi:10.3390/s8084560

Anodic Voltammetry of Thioacetamide and its Amperometric Determination in Aqueous Media

West University of Timisoara, Laboratory of Electrochemistry, Str. Pestalozzi Nr. 16, 300115, Timisoara, Romania
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Received: 17 July 2008 / Revised: 30 July 2008 / Accepted: 31 July 2008 / Published: 4 August 2008
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Abstract

TAA is a harmful, presumptive pollutant in tap waters and waste waters. Several alternatives have been tested as new possibilities for the anodic determination of TAA in aqueous solutions, simulated waste waters and tap water. The electrochemical behaviour of thioacetamide (TAA) was investigated at a boron-doped diamond (BDD) electrode both in unbuffered 0.1 M Na2SO4 and buffered solutions as supporting electrolytes. The anodic oxidation of TAA showed well-defined limiting currents or current peaks and a good linearity of the amperometric signal vs. concentration plots. The analytical parameters of sensitivity, RSD and LOD, obtained under various experimental conditions, suggest the suitability of the BDD electrode for electroanalytical purposes. Low fouling effects, good reproducibility and stability, as well as the sharpness of the amperometric signals in both unbuffered/ buffered acidic or neutral media, highly superior to those obtained using a glassy carbon (GC) electrode, recommend the unmodified BDD electrode as a promising potential amperometric sensor for environmental applications, regarding the direct anodic determination of TAA in aqueous media. View Full-Text
Keywords: thioacetamide; cyclic voltammetry; chronoamperometry; boron-doped diamond electrode; anodic oxidation. thioacetamide; cyclic voltammetry; chronoamperometry; boron-doped diamond electrode; anodic oxidation.
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Cinghită, D.; Radovan, C.; Dascălu, D. Anodic Voltammetry of Thioacetamide and its Amperometric Determination in Aqueous Media. Sensors 2008, 8, 4560-4581.

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