title: New hydrophilic polymeric resin based on 4-vinylpyridine-divinylbenzene for solid-phase extraction of polar compounds from water.
abstract: A 4-vinylpyridine-divinylbenzene (VP-DVB) resin was synthesized to be used for on-line solid-phase extraction process and it was tested for a group of polar compounds. The high specific surface area and the nitrogen content of the VP-DVB sorbent increased the interactions with the polar analytes in the preconcentration process. The sorbent enabled 100 ml of water to be concentrated with recoveries higher than 70% for several polar compounds (including phenol) except for oxamyl (55%) and methomyl (43%). The method was used to analyse water samples by liquid chromatography and UV detection. Linearity was good and detection limits were 0.1-0.2 microg l(-1) for all compounds. Several tap and river water and waste water treatment plant samples were analyzed; phenol and (4-chloro-2-methyl-phenoxy)acetic acid (MCPA) were tentatively determined in some samples.
authors.affiliation: Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, Imperial Tàrraco, 1, 43005 Tarragona, Spain.
authors.forename: Núria
authors.initials: N
authors.lastname: Fontanals
authors.forename: Patricia
authors.initials: P
authors.lastname: Puig
authors.forename: Marina
authors.initials: M
authors.lastname: Galià
authors.forename: Rosa Maria
authors.initials: RM
authors.lastname: Marcé
authors.forename: Francesc
authors.initials: F
authors.lastname: Borrull
mesh_terms: D011108:Polymers / Q000737:chemistry*; D011725:Pyridines / Q000737:chemistry*; D014753:Vinyl Compounds / Q000737:chemistry*; D014867:Water / Q000737:chemistry*
chemical_list: D011108:Polymers; D011725:Pyridines; D014753:Vinyl Compounds; D014867:Water; C029351:4-vinylpyridine; C004985:divinyl benzene