Journal
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
Volume 41, Issue -, Pages 15-26Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.trac.2012.08.010
Keywords
Immobilizing support; Interaction mechanism; Ionic liquid (IL); Polymer-based support; Reversed phase (RP); Solid-phase extraction (SPE); Sorbent; Strong anion exchange (SAX); Supported ionic-liquid phase (SILP); Silica-based support
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Funding
- Spanish Ministry of Science and Innovation [CTQ 2011-24179]
- Spanish Department of Innovation, Universities and Enterprise [2009 SGR 223]
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Supported ionic-liquid phases (SILPs), which favorably combine the properties of ionic liquids (ILs) with the advantages of solid supports, were presented in 2009 as an alternative material for solid-phase extraction (SPE). Since then, the number of SILPs used as SPE materials has increased and the results are promising. This report covers various aspects of SILPs: (1) the procedure for their preparation, which clearly depends on the support (based on silica or polymer) where the ILs are immobilized; (2) their interaction mechanisms, which are strongly linked to the SPE protocol and the target analytes; and, (3) their fields of application with a number of selected examples. This is the first review that exclusively describes all SILPs that have been developed to date as sorbents in SPE. (C) 2012 Elsevier Ltd. All rights reserved.
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