Anodic Voltammetry of Thioacetamide and its Amperometric Determination in Aqueous Media

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...

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Main Authors: Daniela Dascălu, Ciprian Radovan, Dan Cinghită
Format: Article
Language:English
Published: MDPI AG 2008-08-01
Series:Sensors
Subjects:
Online Access:http://www.mdpi.com/1424-8220/8/8/4560/
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author Daniela Dascălu
Ciprian Radovan
Dan Cinghită
author_facet Daniela Dascălu
Ciprian Radovan
Dan Cinghită
author_sort Daniela Dascălu
collection DOAJ
description 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.
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spelling doaj.art-9226cf074bfc4b798ba7a6264e3c03dc2022-12-22T04:00:52ZengMDPI AGSensors1424-82202008-08-018845604581Anodic Voltammetry of Thioacetamide and its Amperometric Determination in Aqueous MediaDaniela DascăluCiprian RadovanDan CinghităTAA 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.http://www.mdpi.com/1424-8220/8/8/4560/thioacetamidecyclic voltammetrychronoamperometryboron-doped diamond electrodeanodic oxidation.
spellingShingle Daniela Dascălu
Ciprian Radovan
Dan Cinghită
Anodic Voltammetry of Thioacetamide and its Amperometric Determination in Aqueous Media
Sensors
thioacetamide
cyclic voltammetry
chronoamperometry
boron-doped diamond electrode
anodic oxidation.
title Anodic Voltammetry of Thioacetamide and its Amperometric Determination in Aqueous Media
title_full Anodic Voltammetry of Thioacetamide and its Amperometric Determination in Aqueous Media
title_fullStr Anodic Voltammetry of Thioacetamide and its Amperometric Determination in Aqueous Media
title_full_unstemmed Anodic Voltammetry of Thioacetamide and its Amperometric Determination in Aqueous Media
title_short Anodic Voltammetry of Thioacetamide and its Amperometric Determination in Aqueous Media
title_sort anodic voltammetry of thioacetamide and its amperometric determination in aqueous media
topic thioacetamide
cyclic voltammetry
chronoamperometry
boron-doped diamond electrode
anodic oxidation.
url http://www.mdpi.com/1424-8220/8/8/4560/
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