605
GC CHROMATOGRAMS |
ENVIRONMENTAL
Ai r
Microbial Volatile Organic Compounds (MVOCs)
Rxi®-1ms
Compound
Rt (min.)
1. 2-butanone
9.047
2. 2-methyl-furan
9.640
3. 3-methyl-furan
9.962
4. 2-methyl-1-propanol
10.405
5. 2-methyl-2-butanol
10.791
6. 1-butanol
11.506
7. 3-methyl-2-butanol
12.092
8. 2-pentanol
12.592
9. 2-methyl-1-butanol
13.779
10. dimethyl-disulfide
13.979
11. 3-hexanone
14.994
12. 2-hexanone
15.080
13. 2-heptanone
17.767
14. 1-octen-3-ol
20.019
15. 3-octanone
20.133
16. 3-octanol
20.433
17. 2-pentyl-furan
20.476
18. 2-ethyl-1-hexanol
21.163
19. 1-octanol
22.013
20. 2-isopropyl-3-methoxypyrazine 22.628
21. isoborneol
24.379
22.
α
-terpineol
24.844
23. geosmin
28.347
Column:
Rxi
®
-1ms, 60m, 0.25mm ID, 1.00µm (cat.# 13356)
Sample:
Microbial volatile organic compounds, 2ppbv, 60% RH
Inj.:
1.0µL split (split ratio 1:1),
1mm split inlet liner (cat.# 20972)
Inj. temp.:
200°C
Carrier gas:
helium, constant flow
Flow rate:
1.5mL/min.
Oven temp.:
10°C (hold 1 min.) to 235°C @ 8°C/min.
Det:
Agilent 6890/5973 GC/MS
5 min. solvent delay
Transfer line temp.: 260°C
Scan range:
35 to 350amu
Ionization:
EI
Mode:
scan
Other:
Nutech 8900DS Preconcentrator
Conditions:
Sample = 200mL from canister
Cryotrap1 = -160°C
Desorb = 20°C
Cryotrap2 = 20°C
Desorb = 200°C
Cryofocuser = 200°C
Desorb = 200°C
GC_AR01030
Early detection of MVOCs
allows faster treatment!
Chroma
BLOG
raphy
Topical and timely insights from top chromatographers.
Visit us at
blog.restek.com
Website :
E-mail :
TelNo : 03 9762 2034 . . . in AUSTRALIA
Mar 2011
