Solid-Phase Spectrophotometric Iodometric Determination of Nitrite and Selenium(IV) Using a Polymethacrylate Matrix

Solid-Phase Spectrophotometric Iodometric Determination of Nitrite and Selenium(IV) Using a Polymethacrylate Matrix

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Parent link:Journal of Analytical Chemistry
Vol. 72, iss. 5.— 2017.— [P. 546–550]
Korporace: 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)
Další autoři: Gavrilenko N. A. Natalia Airatovna, Saranchina N. V. Nadezhda Vasilievna, Fedan D. A. Dmitry Andreevich, Gavrilenko M. A. Mikhail Alekseevich
Shrnutí: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
Jazyk:angličtina
Vydáno: 2017
Témata:
труды учёных ТПУ
электронный ресурс
спектрофотометрия
селен
полиметакрилаты
On-line přístup:https://doi.org/10.1134/S1061934817030054
Médium: Elektronický zdroj Kapitola
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=656302

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