GC Analysis of Aromatics in Reformulated Gasoline on SLB®-IL111
Matériaux
Colonne analytique
CONDITIONS
column
SLB-IL111, 60 m x 0.25 mm I.D., 0.20 μm (28928-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
Remarque sur l'analyse
This application illustrates the analysis of a sample of reformulated gasoline on a 60 m SLB-IL111 ionic liquid column. Due to the extremely polar nature of the phase, the aliphatics elute prior to the aromatics. The high level of ethanol in reformulated gasoline can pose a problem in the detection and quantification of benzene. The SLB-IL111 provided separation between these two compounds, with a starting temperature of 50 °C providing the best resolution. The SLB-IL111 has a maximum operating temperature of 270 °C, which is extremely high for a phase of this polarity. The high maximum temperature was utilized in this analysis to elute the napthalenes in < 15 minutes.
Informations légales
FocusLiner is a trademark of SGE Analytical Science Pty Ltd.
SLB is a registered trademark of Merck KGaA, Darmstadt, Germany