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Differential pulse voltammetry in analysis of disinfectants - 2-mercaptobenzothiazole, 4-chloro-3-methylphenol, triclosan, chloramine-T

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Baranowska I., Bijak K.

Open Chemistry

2010

vol. 8

issue 6

1266-1272

The aim of this work was to study the possibility of simultaneous voltammetric determination of some disinfectants used as components in cosmetic products. The examined compounds were: triclosan (5-chloro-2-(2,4-dichlorophenoxy)phenol), chloramine-T (N-chloro-p-toluenesulfonamide sodium salt), 4-chloro-3-methylphenol and 2-mercaptobenzothiazole. Measurements were performed using glassy carbon electrode immersed in Britton-Robinson buffers which acted as supporting electrolytes. The dependence of oxidation and reduction potentials on pH was examined using cyclic voltammetry. Britton-Robinson buffer of pH 9.9 was chosen for further studies to ensure the best separation of compounds. The resultant oxidation potentials indicate the possibility to simultaneously determine some of the disinfectants.. Oxidation reactions of mixtures containing two compounds (4-chloro-3-methylphenol and chloramine-T, 2-mercaptobenzothiazole and 4-chloro-3-methylphenol, 2-mercaptobenzothiazole and triclosan) were recorded as differential pulse voltammograms.

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1 Open Chemistry

1 2010

1 Baranowska I.

1 Bijak K.

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Differential pulse voltammetry in analysis of disinfectants - 2-mercaptobenzothiazole, 4-chloro-3-methylphenol, triclosan, chloramine-T