title: Comparison of different imidazolium supported ionic liquid polymeric phases with strong anion-exchange character for the extraction of acidic pharmaceuticals from complex environmental samples.
abstract: Two imidazolium supported ionic liquid phases (SILPs) containing different anions, trifluoromethanesulphonate [CF(3)SO(3)(-)], and tetrafluoroborate [BF(4)(-)], were synthesized and evaluated as solid-phase extraction sorbents for extracting acidic pharmaceuticals from aqueous samples under strong anion-exchange conditions, which include an effective cleanup of the sample. The best SILP material [MI(+)][CF(3)SO(3)(-) ] was selected and successfully applied to the determination of acidic pharmaceuticals in different types of water samples (river water and effluent wastewater). The results were then compared to the previously synthesized SILP material based on [MI(+)][CF(3)COO(-)] and the commercially available Oasis MAX sorbent.
authors.affiliation: Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, Tarragona, Spain.
authors.forename: Dominika
authors.initials: D
authors.lastname: Bratkowska
authors.forename: Núria
authors.initials: N
authors.lastname: Fontanals
authors.forename: Sylwia
authors.initials: S
authors.lastname: Ronka
authors.forename: Andrzej W
authors.initials: AW
authors.lastname: Trochimczuk
authors.forename: Francesc
authors.initials: F
authors.lastname: Borrull
authors.forename: Rosa M
authors.initials: RM
authors.lastname: Marcé
mesh_terms: D000327:Adsorption; D000837:Anion Exchange Resins / Q000737:chemistry*; D001881:Borates; D001888:Boric Acids / Q000737:chemistry; D052578:Ionic Liquids; D008698:Mesylates / Q000737:chemistry; D004364:Pharmaceutical Preparations / Q000032:analysis* / Q000302:isolation & purification*; D011108:Polymers / Q000737:chemistry; D045483:Rivers / Q000737:chemistry; D012722:Sewage / Q000737:chemistry; D052616:Solid Phase Extraction / Q000295:instrumentation / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000302:isolation & purification
chemical_list: D000837:Anion Exchange Resins; D001881:Borates; D001888:Boric Acids; D052578:Ionic Liquids; D008698:Mesylates; D004364:Pharmaceutical Preparations; D011108:Polymers; D012722:Sewage; D014874:Water Pollutants, Chemical; C098759:fluoroboric acid; C012077:trifluoromethanesulfonic acid