DBPapers
DOI: 10.5593/SGEM2016/B13/S06.111

OPTIMIZATION OF GAS CHROMATOGRAPHY – MASS-SPECTROMETRY PARAMETERS FOR DETERMINATION OF FRACTIONAL AND COMPONENT COMPOSITION OF PETROLEUM

M. Alimzhanova, M. Sergazina, M. Yelemessova, K. Ashimuly
Tuesday 6 September 2016 by Libadmin2016

References: 16th International Multidisciplinary Scientific GeoConference SGEM 2016, www.sgem.org, SGEM2016 Conference Proceedings, ISBN 978-619-7105-57-5 / ISSN 1314-2704, June 28 - July 6, 2016, Book1 Vol. 3, 883-890 pp

ABSTRACT
Study of the component composition of petroleum is one of the most difficult task of analytical analysis, since the composition of the oil is extremely complex, and the content of the individual components in the mixture varies from deposit to deposit. Nowadays, gas chromatography mass - spectrometry (GC/MS) is a powerful tool for chemical characterization of petroleum and petroleum products. Present paper describes optimization of GC/MS parameters for petroleum analysis. Type of column, injector temperature, volume of injection of sample and split ratio were optimized. In the results of selecting efficient column, non - polar type of column was selected as more efficient tool for the separation of a petroleum hydrocarbon groups. In addition, the injector temperature 200 °C was the optimal injector temperature, which provides the maximum signal response of petroleum hydrocarbons. The optimal sample injection volume was 0.5 μL in chosen value of split ratio of 50:1. Due to the optimized parameters, the component composition of petroleum from western and southern regions of Kazakhstan was determined. Thus, the proposed optimization parameters are necessary for further development of method of determination of fractional and component composition of petroleum by GC/MS.

Keywords: petroleum; optimization; component composition; gas chromatography; mass – spectrometry.