645
GC CHROMATOGRAMS |
PETROLEUM & PETROCHEMICAL
Fuels
Derivatized B100 and Internal Standards
MXT®-Biodiesel TG with 2m x 0.53mm ID Retention Gap
GC_PC00935
monoglycerides
triglycerides
Column:
MXT
®
-Biodiesel TG, 10m, 0.32mm ID, 0.1µm
with 2m x 0.53mm retention gap (cat.# 70290)
Sample:
B100 + IS butanetriol & tricaprin derivatized
with MSTFA as per ASTM D-6584
Inj.:
1.0µL cool on-column
Inj. temp.:
oven track
Carrier gas:
hydrogen, constant flow
Flow rate:
4mL/min.
Oven temp.:
50°C (hold 1 min.) to 180°C @ 15°C/min.,
to 230°C @ 7°C/min., to 430°C @ 30°C/min. (hold 5 min.)
Det.:
FID @ 430°C
butanetriol (IS)
glycerin
tricaprin (IS)
diglycerides
Note perfect solvent
peak shape!
B100
MXT®-Biodiesel TG
Column:
MXT
®
-Biodiesel TG, 15m, 0.32mm ID, 0.10µm (cat.# 70291) with
a 2m x 0.53mm MXT
®
retention gap connected with a
MXT
®
low-dead-volume connector (17m total length)
Sample:
biodiesel (B100), derivatized
Inj.:
cool on-column injection
1µL in heptane
Inj. temp.:
oven track
Carrier gas:
hydrogen, constant flow
Flow rate:
3mL/min.
Oven temp.:
50°C (hold 1 min.) to 180°C @ 15°C/min. to 230°C @ 7°C/min. to 430°C @
30°C/min. (hold 5 min.)
Det.:
FID @ 430°C
GC_PC00968
glycerin
butanetriol (IS)
tricaprin (IS)
monoglycerides
monoglycerides
diglycerides
triglycerides
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Mar 2011
