TITLE

Fluorimetric determination of aluminium in water by sequential injection through column extraction

AUTHOR(S)
Brach-Papa, C.; Coulomb, B.; Branger, C.; Margaillan, A.; Théraulaz, F.; Van Loot, P.; Boudenne, J.-L.
PUB. DATE
March 2004
SOURCE
Analytical & Bioanalytical Chemistry;Mar2004, Vol. 378 Issue 6, p1652
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A fluorimetric procedure for the determination of aluminium with matrix removal in drinking water is proposed. The system is based both on the solid phase extraction of aluminium on a new chelating resin (XAD-4 modified by grafting salicylic acid) and the fluorimetric detection of a complex formed between 8-hydroxyquinoline-5-sulfonic acid (HQS) and Al(III), after elution of the resin by hydrochloric acid. The sorption and elution of aluminium were studied in both competitive and non-competitive conditions, varying pH, flow-rates, volume and concentration of reagents, as well as time contact. The optimised procedure allows determination of Al3+ at the sub-ppb level (LOD: 0.2 μg L-1 for 1 ml of sample) within a working range of 0.2–500 μg L-1. The analytical procedure was successfully employed for the determination of aluminium in drinking water during and after flocculation/coagulation treatment processes.
ACCESSION #
15124937

 

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