Flavor Compounds in Malt Whiskey on Stabilwax-DA

Peaks
1.Ethyl octanoate
2.Acetic acid
3.Siloxane
4.1-hydroxy-2,3-butadione
5.1-Hydroxy-2-propanone acetate
6.Furfural
7.Formic acid
8.Propionic acid
9.Isobutyric acid
10.Dimethyl Sulfoxide
11.5-Methyl furfural
12.methyl decanoate + unknown
Peaks
13.Butyric acid
14.Siloxane
15.Ethyl decanoate
16.furfuryl alcohol + isoamyl octanoate
17.isovaleric acid + 2-methylbutyric acid
18.Diethyl succinate
19.3-Methyl-2(5H)-furanone (possible)
20.Valeric acid
21.Ethyl undecanoate
22.Isobutyl decanoate
23.2(5H)-Furanone
24.Unknown
25.Diethyl pentanedioate
image
GC_FF00555
ColumnStabilwax®-DA, 30 m, 0.18 mm ID, 0.18 µm (cat.# 550752)
Injection
Inj. Vol.:10 µL splitless
Oven
Oven Temp.:60 °C (hold 2 min) to 100 °C at 20 °C/min to 240 °C at 5 °C/min (hold 10 min)
Carrier GasHe, constant flow
Linear Velocity:45 cm/sec
DetectorMS
Mode:Scan
Transfer Line Temp.:240 °C
Source Temp.:230 °C
Quad Temp.:150 °C
Electron Energy:70 eV
Ionization Mode:EI
Scan Range:30-400 amu
NotesInj: 10µL/min
Std. conc.: neat
Gerstel CIS Injector: 35°C (hold 2 min.), to 300°C @ 10°C/sec. (hold 5 min.)
Helium vent flow: 600mL/min with 1.8 min. vent end time
AcknowledgementChromatogram courtesy of Kevin MacNamara, Ph.D., Irish Distilleries, Ltd.
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relativo alle ricerche nella libreria dei cromatogrammi

isoamyl octanoate

,

2-methylbutyric acid

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