Abstract
A method is developed for the modification of Fe3O4 particles with a polymer based on N-vinylpyrrolidone with molecular imprints of 4-nitrophenol. The conditions for sorbent synthesis are justified, i.e., the ratio of the crosslinking agent to the functional monomer, as well as the of template to the functional monomer. The particle size of the sorbent was about 100 nm. An installation for the preconcentration of 4‑nitrophenol from aqueous solutions under dynamic conditions is proposed. 96% recovery at 100-fold preconcentration is achieved. The selectivity of the obtained polymer is studied. The imprinting factor in relation to 4-nitrophenol was 3.8.
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Translated by V. Kudrinskaya
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Gubin, A.S., Sukhanov, P.T., Sannikova, N.Y. et al. Use of Molecularly Imprinted Polymer for the Preconcentration of 4-Nitrophenol from Aqueous Media. J Anal Chem 74 (Suppl 1), 11–17 (2019). https://doi.org/10.1134/S1061934819070116
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DOI: https://doi.org/10.1134/S1061934819070116