2026-04-17T00:51:26Zhttps://recercat.cat/oai/requestoai:recercat.cat:10256/109512024-06-18T13:49:11Zcom_2072_452955com_2072_2054col_2072_453073
RECERCAT
author
Garcia-Rodríguez, Aida
author
Matamoros, Víctor
author
Kolev, Spas D.
author
Fontàs Rigau, Clàudia
2024-06-18T13:49:10Z
2024-06-18T13:49:10Z
info:eu-repo/date/embargoEnd/2026-01-01info:eu-repo/date/embargoEnd/2026-01-012015-10-15
http://hdl.handle.net/10256/10951
Antibiotics belong to the so called group of emerging organic contaminants (EOCs) and their presence in natural waters is of considerable environmental concern. Due to the need of their determination in natural waters at trace levels, we have developed a polymer inclusion membrane (PIM) capable of transporting six frequently used antibiotics (four sulfonamides, SAs, and two tetracyclines, TCs). Cellulose triacetate (CTA) and polyvinyl chloride (PVC) based membranes have been tested in transport experiments, with the former membranes exhibiting better permeability for the antibiotics studied. The addition of a plasticizer further improved the permeability of the CTA-based membranes. A PIM containing 30 wt% ETA, 26 wt% Aliquat 336, and 44 wt% 2-nitrophenyloctyl ether, provided the highest percentage of transport over a 24 h period, varying from 75% (sulfathiazole, STZ) to 100% (tetracycline, TC and oxytetracycline, OTC), except for sulfapyridine, (SPY) (55%). The feed solution in these transport experiments was at pH 9 while the stripping solution contained 1.0 M NaCl. A PIM-based device was constructed for the preconcentration of the antibiotics studied in its stripping solution and it was successfully applied to the preconcentration of these antibiotics in environmental water samplesThe financial support of the Ministerio de Economia y Competitividad through project CTM2013-48967-C2-2-P is gratefully acknowledged. Aida Garcia-Rodriguez would like to thank the University of Girona for a research fellowship (BR2011/27)
Tots els drets reservats info:eu-repo/semantics/embargoedAccess
Membranes (Tecnologia)
Membranes (Technology)
Contaminants orgànics de l'aigua
Organic water pollutants
Separació (Tecnologia)
Separation (Technology)
Cromatografia
Chromatographic analysis
Development of a polymer inclusion membrane (PIM) for the preconcentration of antibiotics in environmental water samples
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion