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Scotch on Rxi-1301Sil MS

PeakstR (min)
1.Acetaldehyde4.409
2.Methanol4.511
3.Ethanol5.440
4.n-Propanol6.883
PeakstR (min)
5.Ethyl acetate7.452
6.Isobutanol8.182
7.Acetal9.509
8.Isoamyl alcohol (3-methyl-1-butanol)10.361
9.Active amyl alcohol (2-methyl-1-butanol)10.432
image
GC_FF1277
ColumnRxi-1301Sil MS, 60 m, 0.25 mm ID, 1.00 µm (cat.# 16097)
SampleScotch
Conc.:Neat
Injection
Inj. Vol.:1 µL split (split ratio 20:1)
Liner:Topaz 4.0 mm ID Precision inlet liner w/wool (cat.# 23305)
Inj. Temp.:250 °C
Oven
Oven Temp.:40 °C (hold 1 min) to 300 °C at 10 °C/min (hold 1 min)
Carrier GasHe, constant flow
Flow Rate:1.4 mL/min
DetectorMS
Mode:Scan
Scan Program:
GroupStart Time
(min)
Scan Range
(amu)
Scan Rate
(scans/sec)
1420-3002.5
Transfer Line Temp.:280 °C
Analyzer Type:Quadrupole
Source Type:Inert
Source Temp.:230 °C
Quad Temp.:150 °C
Electron Energy:70 eV
Tune Type:BFB
Ionization Mode:EI
InstrumentAgilent 7890A GC & 5975C MSD
NotesWater coelutes with acetaldehyde and methanol, which results in distortion of the baseline.
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