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Cocoa Butter on Rxi-65TG

PeakstR (min)
1.Tripalmitin (PPP)14.233
2.1,2-Palmitin-3-stearin (PPS)15.947
3.1,3-Palmitin-2-olein (POP)16.241
4.1,2-Palmitin-3-linolein (PPL)16.579
5.1-Palmitin-2-olein-3-stearin (POS)18.425
6.1,2-Olein-3-palmitin (POO)18.619
7.1,2-Stearin-3-olein (SOS)20.866
8.Triolein (OOO)21.457
ColumnRxi-65TG, 30 m, 0.25 mm ID, 0.1 µm (cat.# 17108)
Standard/SampleCocoa butter
Conc.: ~50 mg of cocoa butter diluted to 10 mL with isooctane.
Inj. Vol.:1 µL split (split ratio 35:1)
Liner:Topaz 4.0 mm ID Precision inlet liner w/wool (cat.# 23305)
Inj. Temp.:360 °C
Split Vent Flow Rate:35 mL/min
Oven Temp.:200 °C (hold 1 min) to 350 °C at 20 °C/min to 365 °C at 1 °C/min (hold 6 min)
Carrier GasH2, constant flow
Flow Rate:1 mL/min
DetectorFID @ 365 °C
Make-up Gas Flow Rate:30 mL/min
Make-up Gas Type:N2
Hydrogen flow:40 mL/min
Air flow:370 mL/min
Data Rate:50 Hz
InstrumentAgilent 7890B GC