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Commercial Spearmint Oil on Stabilwax-MS

PeakstR (min)
1.α-Pinene4.66
2.β-Pinene6.92
3.Sabinene7.37
4.Myrcene8.68
5.Limonene9.49
6.1,8-Cineole9.67
7.Cymene11.33
8.3-Octanol14.10
9.1-Octen-3-ol15.26
10.Menthone15.59
11.Menthofuran15.94
12.β-Bourbonene16.58
PeakstR (min)
13.Linalool17.11
14.Menthyl acetate17.44
15.4-Terpineol18.12
16.Dihydrocarvone18.26
17.Neoisomenthol18.59
18.Menthol*18.88
19.Terpineol19.76
20.Germacrene D20.01
21.Piperitone20.31
22.Carvone20.44
23.Jasmone23.66
24.Caryophyllene oxide24.28
* High signal suggests adulteration or misbranding.
image
GC_GN1169
ColumnStabilwax-MS, 30 m, 0.25 mm ID, 0.25 µm (cat.# 10673)
SampleCommercial spearmint oil
Conc.: Neat
Injection
Inj. Vol.:1 µL split (split ratio 150:1)
Liner:Premium 3.5 mm ID single taper w/wool (cat.# 23322.5)
Inj. Temp.:250 °C
Oven
Oven Temp.:45 °C (hold 5 min) to 250 °C at 7 °C/min (hold 10 min)
Carrier GasHe, constant linear velocity
Linear Velocity:36 cm/sec
DetectorMS
Mode:Scan
Scan Program:
GroupStart Time
(min)
Scan Range
(amu)
Scan Rate
(scans/sec)
1040-5503.3
Transfer Line Temp.:260 °C
Analyzer Type:Quadrupole
Source Temp.:250 °C
Electron Energy:70 eV
Ionization Mode:EI
InstrumentShimadzu 2010 GC & QP2010+ MS
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