Chromatographic determination of nitrophenols in aqueous media after two-stage preconcentration using an N-vinylpyrrolidone-based polymer
- Authors: Sukhanov P.T.1, Kushnir A.A.1, Churilina E.V.1, Maslova N.V.2, Shatalov G.V.3
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Affiliations:
- 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
- Issue: Vol 72, No 4 (2017)
- Pages: 468-472
- Section: Articles
- URL: https://journals.rcsi.science/1061-9348/article/view/182426
- DOI: https://doi.org/10.1134/S1061934817020137
- ID: 182426
Cite item
Abstract
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.
About the authors
P. T. Sukhanov
Voronezh State University of Engineering Technologies
Author for correspondence.
Email: pavel.suhanov@mail.ru
Russian Federation, Voronezh, 394036
A. A. Kushnir
Voronezh State University of Engineering Technologies
Email: pavel.suhanov@mail.ru
Russian Federation, Voronezh, 394036
E. V. Churilina
Voronezh State University of Engineering Technologies
Email: pavel.suhanov@mail.ru
Russian Federation, Voronezh, 394036
N. V. Maslova
Hygiene and Epidemiology Center no. 97 of the Federal Medical-Biological Agency of the Russian Federation
Email: pavel.suhanov@mail.ru
Russian Federation, Voronezh, 394062
G. V. Shatalov
Voronezh State University
Email: pavel.suhanov@mail.ru
Russian Federation, Voronezh, 394693
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