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BAC Resolution Control Standard n-P on Rtx-BAC Plus 1 and Plus 2 Column Set

GC_CF1160
PeaksConc.
(µg/mL)
BAC Plus 1 RT (min.)BAC Plus 2 RT (min.)
1.Methanol500.8010.741
2.Acetaldehyde500.8480.697
3.Ethanol501.0120.884
4.Isopropanol501.2381.006
5.Acetone501.3480.955
6.1-Propanol501.7091.401
ColumnsRtx-BAC Plus 1 30 m, 0.32 mm ID, 1.8 µm (cat.# 18004)
and Rtx-BAC Plus 2 30 m, 0.32 mm ID, 0.6 µm (cat.# 18006)
using Rxi guard column 5 m, 0.32 mm ID (cat.# 10039)
with Universal “Y” Press-Tight connector (cat.# 20405-261)
SampleBAC resolution control standard n-P (cat.# 36010)
Conc.: 50 µL of standard was diluted with 950 µL water in a 20 mL headspace vial.
Injectionheadspace-loop split (split ratio 50:1)
Liner:1 mm straight inlet liner (cat.# 20972)
Headspace-Loop
Inj. Port Temp.:200 °C
Instrument:Tekmar HT3
Inj. Time:1 min
Transfer Line Temp.:125 °C
Valve Oven Temp.:125 °C
Sample Temp.:60 °C
Sample Equil. Time:5 min
Vial Pressure:30 psi
Pressurize Time:2 min
Loop Pressure:20 psi
Loop Fill Time:1 min
Oven
Oven Temp.:40 °C (hold 3 min)
Carrier GasHe, constant flow
Linear Velocity:80 cm/sec
DetectorFID @ 240 °C
Make-up Gas Flow Rate:30 mL/min
Make-up Gas Type:N2
InstrumentAgilent/HP6890 GC
NotesThe Rtx-BAC Plus 1 and Plus 2 columns were connected to the injection port using a ~12 inch section of guard column between the injection port and the Universal Y Press-Tight connector.

Headspace concentrator courtesy of Teledyne Tekmar, Mason, OH.