Chromatographic determination of nitrophenols in aqueous media after two-stage preconcentration using an N-vinylpyrrolidone-based polymer
- Авторлар: Sukhanov P.1, Kushnir A.1, Churilina E.1, Maslova N.2, Shatalov G.3
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Мекемелер:
- 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
- Шығарылым: Том 72, № 4 (2017)
- Беттер: 468-472
- Бөлім: Articles
- URL: https://journals.rcsi.science/1061-9348/article/view/182426
- DOI: https://doi.org/10.1134/S1061934817020137
- ID: 182426
Дәйексөз келтіру
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.
Негізгі сөздер
Авторлар туралы
P. Sukhanov
Voronezh State University of Engineering Technologies
Хат алмасуға жауапты Автор.
Email: pavel.suhanov@mail.ru
Ресей, Voronezh, 394036
A. Kushnir
Voronezh State University of Engineering Technologies
Email: pavel.suhanov@mail.ru
Ресей, Voronezh, 394036
E. Churilina
Voronezh State University of Engineering Technologies
Email: pavel.suhanov@mail.ru
Ресей, 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
Ресей, Voronezh, 394062
G. Shatalov
Voronezh State University
Email: pavel.suhanov@mail.ru
Ресей, Voronezh, 394693