Gomes, Rafaela de PaivaTonucci, Marina CaldeiraPrete, Maiyara CarolyneTarley, César Ricardo TeixeiraBaeta, Bruno Eduardo LoboAfonso, Robson José de Cássia Franco2023-11-212023-11-212023GOMES, R. P. et al. A hybrid molecularly imprinted polymer for selective adsorption of urinary S-Phenylmercapturic Acid. Journal of the Brazilian Chemical Society, v. 34, n. 8, p. 1197-1207, 2023. Disponível em: <https://www.scielo.br/j/jbchs/a/g7jWWKYz8WqrkMgfMVD9ZZh/>. Acesso em: 01 ago. 2023.1678-4790http://www.repositorio.ufop.br/jspui/handle/123456789/17834A hybrid molecular imprinted polymer (HMIP) obtained by the organic monomer 4-vinylpyridine (4-VP) and the inorganic precursor tetraethyl orthosilicate (TEOS) was synthesized for the selective extraction of urinary S-phenylmercapturic acid (u-SPMA), a biomarker of benzene exposure. The chemical and structural characterization of the synthetic adsorbent was performed by Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), and textural analysis employing N2 adsorption-desorption isotherms. Selective and adsorptive performance of the imprinted polymers were evaluated by kinetic, isothermal, thermodynamic, and selectivity studies. The kinetic data were well adjusted to pseudo-second order and intraparticle diffusion models, leading to selectivity coefficient (K) value of 0.03 g mg-1 min-1 for HMIP. In addition, the adsorption isotherms were better described by the Sip model achieving a maximum adsorption capacity of 284.81 μg g-1 (at 288.15 K).en-USabertoBenzeneS-phenylmercapturic acidHybrid molecular imprinted polymer4-vinylpyridineTetraethyl orthosilicateArtigo publicado em periodicoThis is an open-access article distributed under the terms of the Creative Commons Attribution License. Fonte: PDF do artigo.https://doi.org/10.21577/0103-5053.20230032