GC Chromatograms
GC Chromatograms
GC Chromatograms
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<strong>GC</strong> CHROMATOGRAMS | FOODS, FLAVORS, & FRAGRANCES<br />
Flavors<br />
Sulfur Compounds in Headspace Sample of U.S. Beer<br />
on Rt®-XLSulfur<br />
Peaks<br />
1. Hydrogen sulfide<br />
2. Methyl mercaptan<br />
3. Dimethyl sulfide and/or ethyl mercaptan<br />
4. Unknown<br />
Column<br />
Rt®-XLSulfur, 100/120 mesh,<br />
1 m, 0.95 mm OD, 0.75 mm ID<br />
(cat.# 19806)<br />
Sample<br />
Headspace of a U.S. beer<br />
sample<br />
Injection<br />
Headspace-loop split<br />
Oven<br />
Oven Temp: 60 °C to 260 °C at 15 °C/min<br />
(hold 5 min)<br />
Carrier Gas He, constant flow<br />
Flow Rate: 10 mL/min<br />
Detector SCD @ 800 °C<br />
Notes<br />
Injection: 1 cc sample loop,<br />
6-port Valco® valve<br />
Detector sensitivity: attn. x 1<br />
Sulfur Compounds in Headspace Sample of<br />
Canadian Beer on Rt®-XLSulfur<br />
Peaks<br />
1. Hydrogen sulfide<br />
2. Methyl mercaptan<br />
3. Dimethyl sulfide and/or ethyl mercaptan<br />
4. Unknown<br />
Column Rt®-XLSulfur, 100/120 mesh, 1 m,<br />
0.95 mm OD, 0.75 mm ID<br />
(cat.# 19806)<br />
Sample<br />
Headspace of a Canadian beer<br />
sample<br />
Injection<br />
Headspace-loop split<br />
Oven<br />
Oven Temp: 60 °C to 260 °C at 15 °C/min<br />
(hold 5 min)<br />
Carrier Gas He, constant flow<br />
Flow Rate: 10 mL/min<br />
Detector SCD @ 800 °C<br />
Notes<br />
Injection: 1 cc sample loop,<br />
6-port Valco® valve<br />
Detector sensitivity: attn. x 1<br />
Sulfur Compounds in Headspace Sample of<br />
Mexican Beer on Rt®-XLSulfur<br />
<strong>GC</strong>_FF00494<br />
Rum on Rtx®-1301<br />
<strong>GC</strong>_FF00487<br />
Peaks<br />
1. Hydrogen sulfide<br />
2. Methyl mercaptan<br />
3. Dimethyl sulfide and/or ethyl mercaptan<br />
4. Unknown<br />
Column Rt®-XLSulfur, 100/120 mesh, 1 m,<br />
0.95 mm OD, 0.75 mm ID (cat.# 19806)<br />
Sample<br />
Headspace of a Mexican beer sample<br />
Injection<br />
Headspace-loop split<br />
Oven<br />
Oven Temp: 60 °C to 260 °C at 15 °C/min (hold 5 min)<br />
Carrier Gas He, constant flow<br />
Flow Rate: 10 mL/min<br />
Detector SCD @ 800 °C<br />
Notes<br />
Injection: 1 cc sample loop,<br />
6 port Valco® valve<br />
Detector sensitivity: attn. x 1<br />
<strong>GC</strong>_FF00483<br />
Column<br />
Rtx®-1301, 60 m, 0.25 mm ID, 1.40 μm<br />
(cat.# 16016)<br />
Sample<br />
Conc.:<br />
Neat<br />
Injection<br />
Inj. Vol.: 1.0 μL split (split ratio 100:1)<br />
Liner: Cyclosplitter® (cat.# 20706)<br />
Inj. Temp.: 150 °C<br />
Oven<br />
Oven Temp: 35 °C (hold 5 min) to 100 °C at 1 °C/min<br />
Carrier Gas H2, constant pressure<br />
Linear Velocity: 40 cm/sec<br />
Detector FID @ 200 °C<br />
<strong>GC</strong>_FF00110<br />
Peaks<br />
1. Acetaldehyde<br />
2. Methanol<br />
3. Ethanol<br />
4. Acetone<br />
5. Ethyl formate<br />
6. Isopropanol<br />
7. n-Propanol<br />
8. Ethyl acetate<br />
9. sec-Butanol<br />
10. Isobutanol<br />
11. Isoamyl alcohol<br />
12. Active amyl alcohol<br />
13. n-Amyl alcohol<br />
1-800-356-1688 or 1-814-353-1300 www.restek.com 643
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