Presentation Profile
Single Dimensional and Multi Dimensional GC Approach to Detailed Hydrocarbon Analysis
Currently Scheduled: 10/15/2019 - 2:00 PM - 2:30 PM
Room: Exhibit Hall Room A4
Main Author
Ramkumar Dhandapani - Phenomenex
Abstract:
Complex samples including Petroleum hydrocarbons fractions requires detailed separation of individual class of organic compounds. A traditional GC approach for Detailed hydrocarbon Analysis or Speciation involves High efficient column dimension and longer GC column. Alternately, speciation can be performed using Multidimensional GC. In the present work, GC approach using ZB-DHA-PONA column and GCxGC approach using 2 complimentary selectivity are considered. The 2D approach provides in depth separation of complex light, heavier hydrocarbons, oxygenates and FAMES. Due to high peak capacity in GCxGC, orthogonal selectivity of Zebron GC columns, complementary selectivity in both dimensions, effective separation of individual component can take place. This includes group separation of linear alkanes (n and iso-parafins),linear alkenes (olefins), cyclic alkanes, aromatics (one-ring teralin derivatives), Aromatics (one-ring, benzene derivatives), Aromatics (2-rings naphtalene derivatives), Aromatics (2-rings, dibenzene derivatives), Aromatic (3-rings), Aromatic (4-rings), Aromatic (5-rings), oxygenates and FAMEs in Aviation fuels. Different column combination including normal and reverse selectivity and different modulation including flow and cryo modulation were explored depending on the matrix and the application. End results demonstrated that High efficient dimension and choice of column selectivity are the key to achieve good chromatographic separation.
