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Issue 26, 2020
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Magnetic porous carbons derived from cobalt(ii)-based metal–organic frameworks for the solid-phase extraction of sulfonamides

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Abstract

In this work, the dispersive solid-phase extraction of sulfonamide antibiotics was evaluated using magnetic porous carbons derived from cobalt(II)-based metal–organic frameworks. By direct carbonization under the inert atmosphere of Co-SIM-1, Co-MOF-74 and Co-DABCO MOFs, different magnetic porous carbons were prepared and characterized to study their structural, morphological, chemical and textural properties. Their performance for the simultaneous extraction of three sulfonamides (sulfadiazine, sulfamerazine and sulfamethazine), prior to HPLC analysis, was also evaluated, obtaining the best results (>95%) in the case of C/Co-SIM-1 carbon, probably due to its bimodal pore structure, high surface area and large amount of surface defects. Using this adsorbent, the effect of the solution pH and contact time on the adsorption of the sulfonamides, and the reusability of the carbon were studied.

Graphical abstract: Magnetic porous carbons derived from cobalt(ii)-based metal–organic frameworks for the solid-phase extraction of sulfonamides

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Supplementary files

Article information


Submitted
01 Apr 2020
Accepted
04 Jun 2020
First published
05 Jun 2020

Dalton Trans., 2020,49, 8959-8966
Article type
Paper

Magnetic porous carbons derived from cobalt(II)-based metal–organic frameworks for the solid-phase extraction of sulfonamides

S. Y. Mendiola-Alvarez, G. Turnes Palomino, J. Guzmán-Mar, A. Hernández-Ramírez, L. Hinojosa-Reyes and C. Palomino Cabello, Dalton Trans., 2020, 49, 8959
DOI: 10.1039/D0DT01215G

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