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4716576 
Journal Article 
Synthesis and applications of XAD-4-DAN chelate resin for the separation and determination of Se(IV) 
Depecker, G; Branger, C; Margaillan, A; Pigot, T; Blanc, S; Robert-Peillard, F; Coulomb, B; Boudenne, JLuc 
2009 
1 
Reactive and Functional Polymers
ISSN: 1381-5148 
69 
12 
877-883 
WOS:000272134500004 
Solid-phase extraction for cationic elements is a promising approach for water treatment or for analysis applications. However. supports that allow the selective extraction and/or preconcentration of metalloid species are still not widespread. A new chelating sorbent has been prepared by grafting 2,3-diaminonaphtalene (DAN) on Amberlite (R) XAD-4 resin beads via a diazo bridge. The synthesis was first carried out at a molecular level to optimise experimental conditions and to facilitate characterisation of solid sorbent by FTIR. TGA, Py-GC/MS experiments and back titration of amine functions showed that the sorbent was grafted. Se(IV) was retained by grafted Amberlite (R) XAD-4 with a rate of 88% at pH 2 and 80 degrees C. This paper presents a convenient way of grafting DAN on polystyrene-like resins and the first applications of these supports in solid-phase extraction of Se(IV). (C) 2009 Elsevier Ltd. All rights reserved. 
Poly(styrene-co-divinylbenzene) sorbents; Grafting; 2,3-Diaminonaphtalene; Selenite