GC Analysis of Aromatics in Reformulated Gasoline on Equity™-1
Materials
analytical column
CONDITIONS
column
Equity-1, 60 m x 0.25 mm I.D., 0.25 μm (28047-U)
oven
50 °C (3 min), 15 °C/min to 265 °C (5 min)
inj. temp.
250 °C
detector
FID, 265 °C
carrier gas
helium, 30 cm/sec
injection
0.5 μL, 200:1 split
liner
4 mm I.D., splitless type, single taper wool packed FocusLiner™ design
sample
reformulated unleaded gasoline
Description
Analysis Note
This application illustrates the analysis of a sample of reformulated gasoline on the Equity-1 column. Due to the nonpolar nature of the phase, there is a great deal of overlap in the elution ranges of the aliphatic and aromatic portions of this highly complex sample. Benzene is not baseline resolved even on a 60 m column. For this reason, this phase could not be used by itself for the analysis of benzene in this sample.
Legal Information
Equity is a trademark of Sigma-Aldrich Co. LLC
FocusLiner is a trademark of SGE Analytical Science Pty Ltd.