Optimisation of ICPMS collision/reaction cell conditions for the simultaneous removal of argon based interferences of arsenic and selenium in water samples

J. Darrouzès , Maïté Bueno (1) , Gaetane Lespes (1) , M. Holeman (1) , M. Potin-Gautier (1)

1 LCABIE - Laboratoire de Chimie Analytique Bio-Inorganique et Environnement

The optimisation of ICPMS collision/reaction cell conditions for the simultaneous analysis of arsenic and selenium is described. A mixture of 3.8 mL min-1 of H2 and 0.5 mL min-1 of He was found to be suitable for the removal of both ArAr+ and ArCl+ interferences. Detection limits down to 30 ng (element) L-1 in total analysis, and between 81 and 230 ng (element) L-1 in speciation analysis were achieved in chloride matrix (1 g L-1 NaCl). After validation, the method was applied to commercially available mineral waters. © 2006 Elsevier B.V. All rights reserved.

Domaines: Chimie analytique

J. Darrouzès, Maïté Bueno, Gaetane Lespes, M. Holeman, M. Potin-Gautier. Optimisation of ICPMS collision/reaction cell conditions for the simultaneous removal of argon based interferences of arsenic and selenium in water samples. Talanta, 2007, 71 (5), pp.2080-2084. ⟨10.1016/j.talanta.2006.09.019⟩. ⟨hal-01561300⟩