Оптимизация кинетического определения иодата путем окисления метилоранжа в присутствии гидразина

Автор: Данилина Елена Ивановна, Аглиуллина Лилия Темирьяновна

Журнал: Вестник Южно-Уральского государственного университета. Серия: Химия @vestnik-susu-chemistry

Статья в выпуске: 2 т.6, 2014 года.

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Вместо метода фиксированного времени было предложено использовать разность индукционных периодов обесцвечивания холостого опыта и исследуемого раствора в качестве аналитического сигнала для определения иодат-иона реакцией Ландольта метилоранжа c броматом калия в присутствии гидразина. Оптимальные условия: 0,024 M H 2SO 4, 2x10 -6 M метилоранжа, (5-6)x10 -5 M KBrO 3, 1x10 -5 N 2H 4. Градуировочный график линеен в интервале (0,06-2,4) мкг/мл, погрешность сходимости менее 2,7 %, относительная ошибка определения менее 3,3 % при анализе водных растворов.

Кинетический анализ, фотометрический анализ, иодат, реакция ландольта, бромат, гидразин, индукционный период, метилоранж

Короткий адрес: https://sciup.org/147160288

IDR: 147160288

Список литературы Оптимизация кинетического определения иодата путем окисления метилоранжа в присутствии гидразина

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