Flavor Compounds in Malt Whiskey on Stabilwax-DA

GC_FF00557

	Peaks
1.	Nonanoic acid
2.	Diethyl 2-hydroxyglutarate
3.	Unknown
4.	Tetradecanol
5.	4-Vinylguaiacol
6.	Diethyl nonanedioate
7.	Methyl hexadecanoate
8.	Ethyl γ-lactone 2-hydroxyglutarate
9.	Ethyl hexadecanoate
10.	Decanoic acid
11.	Ethyl 9-hexadecanoate
12.	Triacosan
13.	Unknown

	Peaks
14.	Phthalide
15.	Diethylphthalate
16.	Hexadecanol
17.	4-Hydroxycinnamic acid (decomp.)
18.	Methyl stearate
19.	Benzoic acid
20.	Methyl 8-octadecenoate
21.	Ethyl stearate
22.	Dodecanoic acid
23.	Hydroxymethylfurfuraldehyde
24.	Ethyl linoleate
25.	4-Allyl-2,6-dimethoxyphenol
26.	Diisobutyl phthalate

	Peaks
27.	Vanillin
28.	Sinapic acid (decomp.)
29.	2-phenylethyl decanoate + 2 unknowns
30.	4-(2-Propenyl)-2,6-dimethoxyphenol
31.	Ethyl vanillate
32.	Acetovanillone
33.	Vanillin methyl ketone
34.	Tetradecanoic acid
35.	Ethyl homovanillate
36.	Propiovanillone
37.	fatty acid ester
38.	(similar to 4-allyl-2,6-dimethoxyphenol)
39.	unknown

Injection
Column	Stabilwax-DA, 30 m, 0.18 mm ID, 0.18 µm (cat.# 550752)
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 Gas	He, constant flow
Linear Velocity:	45 cm/sec

Detector	MS
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
Notes	Inj: 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
Acknowledgement	Chromatogram courtesy of Kevin MacNamara, Ph.D., Irish Distilleries, Ltd.

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