Article
Application of TLC and LA ICP SF MS for speciation of S, Ni and V in petroleum samples
Autor
Vorapalawut, Nopparat
Martinez Labrador, Mauro
Pohl, Pawel
Caetano, Manuel
Chirinos, José
Arnaudguilhem, Carine
Bouyssiere, Brice
Shiowatana, Juwadee
Lobinski, Ryszard
Institución
Resumen
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.