Chromatographic determination of nitrophenols in aqueous media after two-stage preconcentration using an N-vinylpyrrolidone-based polymer
- Авторы: Sukhanov P.1, Kushnir A.1, Churilina E.1, Maslova N.2, Shatalov G.3
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Учреждения:
- Voronezh State University of Engineering Technologies
- Hygiene and Epidemiology Center no. 97 of the Federal Medical-Biological Agency of the Russian Federation
- Voronezh State University
- Выпуск: Том 72, № 4 (2017)
- Страницы: 468-472
- Раздел: Articles
- URL: https://journals.rcsi.science/1061-9348/article/view/182426
- DOI: https://doi.org/10.1134/S1061934817020137
- ID: 182426
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Аннотация
Two-stage procedures for the preconcentration of nitrophenols (4-nitrophenol, 2,4- and 2,5-dinitrophenol, and 2,4,6-trinitrophenol) from aqueous solutions are proposed. At the first stage, the preconcentration and desorption of nitrophenols under dynamic conditions is carried out. At the second stage, depending on the nature of the desorption solution, the eluate is evaporated (acetonitrile) or saturated with ammonium sulfate and extracted with acetone (aqueous NH3 solution). The concentration factors are 4000 and 910, respectively. Nitrophenols are determined in concentrates by thin layer chromatography and HPLC, the limits of detection are 1.0–1.8 and 0.25–0.45 μg/L, respectively. The duration of analysis is 200 min.
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Об авторах
P. Sukhanov
Voronezh State University of Engineering Technologies
Автор, ответственный за переписку.
Email: pavel.suhanov@mail.ru
Россия, Voronezh, 394036
A. Kushnir
Voronezh State University of Engineering Technologies
Email: pavel.suhanov@mail.ru
Россия, Voronezh, 394036
E. Churilina
Voronezh State University of Engineering Technologies
Email: pavel.suhanov@mail.ru
Россия, Voronezh, 394036
N. Maslova
Hygiene and Epidemiology Center no. 97 of the Federal Medical-Biological Agency of the Russian Federation
Email: pavel.suhanov@mail.ru
Россия, Voronezh, 394062
G. Shatalov
Voronezh State University
Email: pavel.suhanov@mail.ru
Россия, Voronezh, 394693