РАЗРАБОТКА ИНВЕРСИОННО-ВОЛЬТАМПЕРОМЕТРИЧЕСКОГО МЕТОДА ОПРЕДЕЛЕНИЯ ИОНА СО (II) С ИСПОЛЬЗОВАНИЕМ ЭЛЕКТРОДА, МОДИФИЦИРОВАННОГО ТРОПЕОЛИНОМ
Ион кобальта(II) определяли инверсионно-вольтамперометрический методом с использованием электрода из угольной
пасты, модифицированного тропеолином. Найдены оптимальные условия создания модифицированного электрода,
согласно которым соотношение парафина, графита, тропеолина составляло 1:1:0,025. Комплексообразование кобальта с
натриевой солью 4-(4-анилинофенилазо)-бензосульфокислоты (Тропеолин00) определяли методом циклической
вольтамперометрии (ЦВ). В качестве оптимальной среды для образования комплекса иона Со(II) использовали
универсальный буферный раствор рН 2,58. Результаты сравнивали с результатами, полученными на основе платинового
электрода.
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