Application of TLC and la ICP SF MS for speciation of S, Ni and v in petroleum samples

N. Vorapalawut , M. Martinez Labrador , P. Pohl , M. Caetano , J. Chirinos , Carine Arnaudguilhem (1) , Brice Bouyssière (1) , J. Shiowatana , Ryszard Lobinski (1)

1 IPREM - Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux

A coupling of thin layer chromatography with laser ablation ICP SF MS was developed for the fractionation of Ni, V, Fe and S in crude oil and its fractions (saturate, aromatic, resin and asphaltene). The detection limits were 18 ng g -1 and 23 ng g -1 for nickel and vanadium, respectively, and a sample could be characterized in terms of the metal distribution as a function of species polarity within 10 min. The method was used to characterize the metal distribution in crude oils of different origins and their different fractions. © 2012 Elsevier B.V. All rights reserved.

Mots clés: Crude oil; LA ICP SF MS; Metals; Speciation; TLC

Domaines: Chimie

N. Vorapalawut, M. Martinez Labrador, P. Pohl, M. Caetano, J. Chirinos, et al.. Application of TLC and la ICP SF MS for speciation of S, Ni and v in petroleum samples. Talanta, 2012, 97, pp.574-578. ⟨10.1016/j.talanta.2012.04.040⟩. ⟨hal-01505947⟩