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Over 10,000 Injections of Lipidomics on Rxi-5ms

GC_PH01053
Peaksm/z
1.Coprostanol370.40
2.d5-Cholestanol (IS)220.20
3.7α-Hydroxycholesterol456.40
4.Cholestanol306.30
5.d5-Epicholestanol (IS)220.20
6.7-Dehydrocholesterol325.25
7.Desmosterol343.25
Peaksm/z
8.Lathosterol458.35
9.d4-Lathosterol (IS)462.40
10.Campesterol382.35
11.4-Cholestenone382.30
12.Stigmasterol394.15
13.Lanosterol393.35
14.β-Sitosterol396.35
15.d7-β-Sitosterol (IS)403.45
ColumnRxi-5ms, 30 m, 0.25 mm ID, 0.25 µm (cat.# 13423)
SampleLipid plasma extract as trimethylsilyl derivatives
Injection
Inj. Vol.:1 µL split (split ratio 10:1)
Liner:4 mm Split taper with wool
Inj. Temp.:310 °C
Oven
Oven Temp.:250 °C (hold 1 min) to 320 °C at 30 °C/min (hold 1.6 min)
Carrier GasHe, constant flow
Flow Rate:1.0 mL/min
DetectorMS
Mode:SIM
Transfer Line Temp.:330 °C
Ionization Mode:EI