AIR MONI TORING
Appl icat ions
26
Phone: 800-356-1688 or 814-353-1300
Sulfur Compounds
Rxi®-1ms
GC_AR00861
Column:
Rxi
®
-1ms, 30m, 0.32mm ID, 4.00µm (cat.# 13396)
Sample:
hydrogen sulfide, carbonyl sulfide, methyl mercaptan,
ethyl mercaptan, dimethyl sulfide, 100 ppbv each in helium
Inj.:
1mL splitless, direct
Sample loop temp.: 30°C
Carrier gas:
helium, constant pressure
Linear velocity:
48cm/sec. @ 30°C
Oven temp.:
30°C
Det.:
sulfur chemiluminescence detector
Det. temp.:
800°C
Sample storage & transfer:
SilcoCan™ air monitoring canister with Siltek
®
treated 1/4" valve (cat.# 24182-650);
Sulfinert
®
treated gas sample loop, 1cc (cat.# 22848); Sulfinert
®
treated gas sample loop,
10cc (custom order)
1. hydrogen sulfide
2. carbonyl sulfide
3. methyl mercaptan
4. ethyl mercaptan
5. dimethyl sulfide
6.00
8.00
10.00 12.00
14.00
16.00 18.00
20.00
22.00
24.00 26.00
28.00
Compound
Rt (min.)
1. 2-butanone
8.2390
2. 2-methyl-furan
8.8180
3. 3-methyl-furan
9.1400
4. 2-methyl-1-propanol
9.5400
5. 2-methyl-2-butanol
9.9190
6. 1-butanol
10.6270
7. 3-methyl-2-butanol
11.1840
8. 2-pentanol
11.6920
9. 2-methyl-1-butanol
12.8500
10. dimethyl-disulfide
13.0640
11. 3-hexanone
14.0580
12. 2-hexanone
14.1440
13. chlorobenzene-d5
15.9590
14. 2-heptanone
16.8240
15. 1-octen-3-ol
19.0760
16. 3-octanone
19.1760
17. 3-octanol
19.4830
18. 2-pentyl-furan
19.5260
19. 2-ethyl-1-hexanol
20.2120
20. 1-octanol
21.0630
21. 2-isopropyl-3-methoxypyrazine
21.6780
22. isoborneol
23.4290
23.
α
-terpineol
23.9010
24. 2-methylisoborneol
24.0790
25. geosmin
28.3470
26. 1-dodecanol
28.6680
Column:
Rxi
®
-1ms, 60m, 0.25mm ID, 1.00µm (cat.# 13356)
Sample:
microbial volatile organic compounds, 50 ppbv, 60% RH
Inj.:
1.0µL split (split ratio 10:1), 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 260°C @ 8°C/min.
Det:
HP 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
Cryotrap = -160°C
Desorb = 20°C
Cryofocuser = 200°C
Desorb = 200°C
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Microbial VOCs on Rxi®-1ms
GC_EV01024
26 Website ;
Email :
Tel No : 03 9762 2034 in AUSTRALIA
