Solid-Phase Spectrophotometric Iodometric Determination of Nitrite and Selenium(IV) Using a Polymethacrylate Matrix; Journal of Analytical Chemistry; Vol. 72, iss. 5

Solid-Phase Spectrophotometric Iodometric Determination of Nitrite and Selenium(IV) Using a Polymethacrylate Matrix; Journal of Analytical Chemistry; Vol. 72, iss. 5

Detalles Bibliográficos
Parent link:Journal of Analytical Chemistry
Vol. 72, iss. 5.— 2017.— [P. 546–550]
Corporate Authors: Национальный исследовательский Томский политехнический университет (ТПУ) Институт кибернетики (ИК) Кафедра систем управления и мехатроники (СУМ), Национальный исследовательский Томский политехнический университет (ТПУ) Институт природных ресурсов (ИПР) Кафедра технологии органических веществ и полимерных материалов (ТОВПМ)
Outros autores: Gavrilenko N. A. Natalia Airatovna, Saranchina N. V. Nadezhda Vasilievna, Fedan D. A. Dmitry Andreevich, Gavrilenko M. A. Mikhail Alekseevich
Summary:Title screen
Procedures for the iodometric solid-phase spectrophotometric determination of nitrite and selenium( IV) using a polymethacrylate matrix are proposed. The procedures are based on the reaction of nitrite and selenium(IV) with iodine in an acidic medium with the release of free iodine in amounts equivalent to those of the substances to be determined, extraction of the iodine formed with a polymethacrylate matrix, and measurement of absorbance of the matrix at 370 nm. The developed procedures ensure the determination of 0.01–0.12 mg/L of nitrite and 0.05–0.40 mg/L of selenium(IV) with limits of detection of 0.005 and 0.03 mg/L, respectively. It was shown that the proposed procedures can be applied to the determination of selenium(IV) in mineral water and nitrites in vegetables and soil.
Режим доступа: по договору с организацией-держателем ресурса
Idioma:inglés
Publicado: 2017
Subjects:
труды учёных ТПУ
электронный ресурс
спектрофотометрия
селен
полиметакрилаты
Acceso en liña:https://doi.org/10.1134/S1061934817030054
Formato: Electrónico Capítulo de libro
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=656302

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