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Title: Electrochemical Determination of Some Triphenylmethane Dyes by Means of Voltammetry
Authors: Vishenkova, Dariya Aleksandrovna
Korotkova, Elena Ivanovna
Sokolova, Vera Alekseevna
Kratochvil, B.
Keywords: вольтамперометрия; пленочные электроды; электровосстановление; трифенилметановые красители
Issue Date: 2015
Publisher: Elsevier
Citation: Electrochemical Determination of Some Triphenylmethane Dyes by Means of Voltammetry / D. A. Vishenkova [et al.] // Procedia Chemistry. — 2015. — Vol. 15 : Chemistry and Chemical Engineering in XXI century (CCE 2015) : XVI International Scientific Conference dedicated to Professor L.P. Kulyov, 25-29 May 2015, Tomsk, Russia. — [P. 109-114].
Abstract: This paper provides the investigation of electrochemical properties of triphenylmethane dyes using a voltammetric method with constant-current potential sweep. Malachite green (MG) and basic fuchsin (BF) have been chosen as representatives of the triphenylmethane dyes. The electrochemical behavior of MG and BF on the surface of a mercury-film electrode depending on рН, the nature of background electrolyte and scan rate of potential sweep have been investigated. The conditions of registration have been determined for MG and BF detecting in the solution. It is demonstrated that the reduction peak currents of MG and BF increase linearly with their concentration in the range of 9.0·10{-5}- 7.0·10{-3} mol/dm{3} for MG, 6.0·10{-5} - 8.0 10{-3} mol/dm3 for BF with correlation coefficients of 0.9987 and 0.9961, respectively. The detection limit of MG is 5.0·10{-5} mol/dm{3} and for BF - 2.0·10{-5} mol/dm{3}.
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