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Research Paper | Chemistry | Egypt | Volume 3 Issue 5, May 2014
Voltammetric Quantification of the Pollutants Nitro Compounds Using Glassy Carbon Electrode
M. Khodari [5] | E. M M. Rabie | O. M. Fahmy
Abstract: The voltamatric behavior of some nitro aromatic compound; such as -nitro benzoic acid; -nitrobenzaldhyde and -nitroaniline; was investigated and the method was developed for the simultaneous determination of these compounds. Adsorption of -nitro benzoic acid; -nitrobenzaldhyde and -nitroaniline at glassy carbon electrode has been studied using cyclic voltammetry and linear sweep techniques; it was found that -nitrobenzoic acid in NaH2PO4 (0.05M) as a supporting electrolyte (pH=2) ; -nitrobenzaldhyde in Na2HPO4 (pH=10) and -nitroaniline in NaNO3 (0.05M) supporting electrolyte (pH=2) ; give one defined reduction peak and one oxidation peak. The effect of different parameters on the peaks response as supporting electrolyte; pH; deposition time; accumulation potential and scan rate were examined. A detection limit of 1x10-5 mol l- was obtained under the optimum conditions for three compounds.
Keywords: Nitro compounds, Linear sweep Voltammetry, Supporting electrolyte, p-nitrobenzoic, p-nitroaniline, p-nitrobenazldhyde, Glassy carbon electrode
Edition: Volume 3 Issue 5, May 2014,
Pages: 122 - 124
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