Mass Spectrometry & Purification Techniques
Open Access
ISSN: 2469-9861
+32-28-08-6657
ISSN: 2469-9861
+32-28-08-6657
Pillay AE
The Petroleum Institute,
PO Box 2533, Abu Dhabi
Central America
Research Article
Deep-UV Laser Ablation Technology [213 nm] Coupled with Plasma Quadrupole Mass Spectrometry for Rapid Determination of Nickel/ Vanadium Ratios in Asphaltenes
Author(s): Pillay AE, Elhameed AA, Nunn R and Stephen SPillay AE, Elhameed AA, Nunn R and Stephen S
Knowledge of nickel/vanadium (Ni/V) ratios in petroleum fuel is essential to source geochemical information and to limit catalytic poisoning and corrosive effects in chemical refining processes. However, these ratios have been found to vary widely and are affected by various factors, including the sulphur content of the petroleum feedstock. They are normally obtained by digesting and treating the feedstock in suitable acid or organic media followed by numerical analysis. Our research investigated a novel sample introduction technique for obtaining Ni/V ratios by ablating petrified asphaltene samples (following liquid nitrogen pre-treatment) with a 213 nm laser beam coupled to a hyphenated plasma mass spectroscopic system. Laser ablation is ideal for delving beneath the surface of a solid matrix to measure the composition of the substrate. Iterative scanning of the sample surface and subs.. Read More»
DOI:
10.4172/2469-9861.1000115