Presentation Profile
Improved Method for Simultaneous Determination of Saturated and Aromatic Biomarkers, Organosulfur Compounds and Diamondoids in Whole-Oil by GC-MS/MS
Currently Scheduled: 1/19/2018 - 10:00 AM - 10:30 AM
Room: Room 372 E
Main Author
Mei Mei - University of Houston
- K. K. (Adry) Bissada - University of Houston
- Thomas B. Malloy - University of Houston
- Mike. Darnell - University of Houston
- Ewa B. Szymcyk. - University of Houston
Abstract:
A GC-MS/MS method, with an Agilent 7890/7000B QQQ system, was developed for determination of saturated and aromatic biomarkers, organosulfur compounds and diamondoids in whole crude-oil samples in a single run. This eliminated the need for group-type separation and analyses of the fractions and avoided the loss of light-ends. This was achieved through improved GC separation; selection of transitions, collision energies, dwell time, and time windows. The method was tested using four crude oils of diverse types. Accuracy and precision were validated by spiking. Comparison of the results indicated higher resolution, higher specificity, sensitivity, accuracy and precision for common biomarker indices.
