The stripping voltammetric behaviour of Ioxynil and 2-methyl-3-nitroaniline has been studied by means of a C-18 modified carbon paste electrode. The analytes are preconcentrated under open-circuit conditions (Ioxynil at pH 3.9; 2-methyl-3-nitroaniline at pH 10). For the determination of Ioxynil and 2-methyl-3-nitroaniline 0.01 mol/l HCl and 1 mol/l KOH, respectively, have been used as supporting electrolyte. Under optimized conditions detection limits up to 0.1 mu g/ml Ioxynil and 0.3 mu g/ml 2-methyl-3-nitroaniline have been obtained. The methods have been applied to the determination of Ioxynil and 2-methyl-3-nitroaniline in drinking water.
机构:
Tanta Univ, Fac Sci, Dept Chem, Analyt & Electrochem Res Unit, Tanta 31527, EgyptTanta Univ, Fac Sci, Dept Chem, Analyt & Electrochem Res Unit, Tanta 31527, Egypt
El-Desoky, Hanaa S.
Ghoneim, Mohamed M.
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机构:
Tanta Univ, Fac Sci, Dept Chem, Analyt & Electrochem Res Unit, Tanta 31527, EgyptTanta Univ, Fac Sci, Dept Chem, Analyt & Electrochem Res Unit, Tanta 31527, Egypt