On-line and off-line quantification of trace elements associated to colloids by As-Fl-FFF and ICP-MS

S Dubascoux; I Le Hécho; M Potin Gautier; G Lespes

doi:10.1016/j.talanta.2008.05.050

On-line and off-line quantification of trace elements associated to colloids by As-Fl-FFF and ICP-MS

Talanta. 2008 Oct 19;77(1):60-5. doi: 10.1016/j.talanta.2008.05.050. Epub 2008 Jun 7.

Authors

S Dubascoux¹, I Le Hécho, M Potin Gautier, G Lespes

Affiliation

¹ LCABIE CNRS UMR 5254 IPREM, Helioparc, av du Président Pierre Angot, 64053 PAU, France. stephane.dubascoux@univ-pau.fr

PMID: 18804599
DOI: 10.1016/j.talanta.2008.05.050

Abstract

A quantification procedure of trace elements during colloid size fractionation was developed and validated. This procedure is based on the hyphenation between Asymmetrical Flow Field-Flow Fractionation (As-Fl-FFF) and Inductively Coupled Plasma Mass Spectrometer (ICP-MS). The optimisation of the procedure was performed on a soil leachate spiked with six trace elements selected for their environmental and health impact (As, Cd, Sb, Se, Sn and Pb). The elements in the spiked sample were on-line monitored during the fractionation. The validation was carried out by comparison with a second off-line quantification procedure based on fraction collection and total element analysis by ICP-MS. This off-line one was previously validated using reference materials. Finally, the analytical performances of the two procedures were compared.