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GC COLUMNS | GENERAL-PURPOSE COLUMNS
Rtx®-20
Rtx®-20 Columns (fused silica)
(low- to midpolarity phase; Crossbond® diphenyl dimethyl polysiloxane)
• General-purpose columns for volatile compounds, flavor compounds,
alcoholic beverages.
• Temperature range: -20 °C to 320 °C.
• Equivalent to USP G28, G32 phases.
Rtx®-20 polymer is synthesized to exacting standards. All residual catalysts and low
molecular weight fragments are removed from the polymer, providing a tight mono-
modal distribution and extremely low bleed.
Rtx®-20 Structure
CH3
CH3
Si
80%
O Si
20%
O
Similar to: (20%-phenyl)-methylpolysiloxane
similar phases
SPB-20, EC-20, AT-20, 007-20
30-Meter
ID df temp. limits cat.# price
0.25 mm 0.25 µm -20 to 300/320 °C 10323
0.50 µm -20 to 290/310 °C 10338
1.00 µm -20 to 280/300 °C 10353
0.32 mm 0.25 µm -20 to 300/320 °C 10324
0.50 µm -20 to 290/310 °C 10339
1.00 µm -20 to 280/300 °C 10354
0.53 mm 1.00 µm -20 to 260/280 °C 10355
Mushroom Aroma (Synthetic) on Rtx®-20
GC_FF00142
Column Rtx®-20, 30 m, 0.32 mm ID, 1.00 µm
(cat.# 10354)
Sample synthetic mushroom aroma
Conc.: 10 ng per component
Injection
Inj. Vol.: 1.0 µL split (split ratio 100:1)
Inj. Temp.: 260 °C
Oven
Oven Temp.: 45 °C (hold 8 min) to 250 °C at 4 °C/min
Carrier Gas H 2, constant pressure
Linear Velocity: 40 cm/sec
Detector FID@ 260 °C
Notes FID sensitivity: 4 x 10 -11AFS
Peaks
1. Acetone
2. Ethyl Acetate
3. 1-Butanol
4. 3-Methyl-1-butanol
5. 1-Pentanol
6. Hexanal
7. Furfural
8. Amyl acetate
9. 1-Octen-3-ol
10. 3-Octanol
11. 3-Octanone
12. Benzaldehyde
13. Octyl alcohol
14. Benzyl Alcohol
15. Phenylacetaldehyde
16. Nonanal
17. α-terpineol
18. 2,4-Nonadienal
19. 2,4-Decadienal
True Blue Performance
Satisfaction
Guaranteed
*
Available for:
Agilent • Bruker/Varian • PerkinElmer
Shimadzu • Thermo Scientific
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