595-610_GCappGro.qxp
11/22/2010
9:10 PM
Page 606
GC CHROMATOGRAMS | ENVIRONMENTAL
Air US EPA TO-14 Compounds Rtx®-1 Column: Sample: Oven temp.: Detector: Det. temp.: Carrier gas: Linear velocity: Ionization: Scan range:
1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 26 13. 14. 15. 16. 17. 18. 19. 20.
Rtx®-1, 60m, 0.32mm ID, 3.0µm (cat.# 10187) 5mL of 2ppmv TO-14 standard. 30°C (hold 4 min.) to 250°C @ 7°C/min. (hold 15 min.) MS 250°C helium 21cm/sec. set @ 30°C EI 34-280amu 18
Preconcentrator conditions: Nutech 3550 A Preconcentrator Cryotrap temp.: -160°C Cryotrap desorb temp.: 150°C Cryofocusing unit temp.: -190°C Cryofocusing desorb temp.: 150°C
20
16
21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 41.
dichlorodifluoromethane chloromethane 1,2-dichlorotetrafluoroethane vinyl chloride bromomethane chloroethane trichlorofluoromethane 1,1-dichloroethene methylene chloride 3-chloropropene 1,1,2-trichloro-1,2,2-trifluoroethane 1,1-dichloroethane cis-1,2-dichloroethene chloroform 1,2-dichloroethane 1,1,1-trichloroethane benzene carbon tetrachloride 1,2-dichloropropane trichloroethene
27 14
7
cis-1,3-dichloropropene trans-1,3-dichloropropene 1,1,2-trichloroethane toluene 1,2-dibromoethane tetrachloroethene chlorobenzene ethylbenzene m-xylene p-xylene styrene o-xylene 1,1,2,2-tetrachloroethane 4-methyltoluene 1,3,5-trimethylbenzene 1,2,4-trimethylbenzene 1,3-dichlorobenzene 1,4-dichlorobenzene 1,2-dichlorobenzene 1,2,4-trichlorobenzene hexachlorobutadiene
24
11 29,30
19 28 13 8 3
9 10
1
15
37
32,33
23
17
41
39
34
12
21
38
25
5
35 36
2
4
min.
40
31
22 6
10
15
20
25
30
35
GC_EV00018
Ozone Precursors Rtx®-1 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23.
ethylene acetylene ethane propylene propane isobutane 1-butene n-butane trans-2-butene cis-2-butene isopentane 2-methyl-1-butene n-pentane trans-2-pentene cis-2-pentene cyclopentane isohexane 3-methylpentane n-hexane methylcyclopentane benzene isoheptane 2,3-dimethylpentane
Column: Sample: 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38.
Oven temp.:
3-methylhexane 2,2,4-trimethylpentane n-heptane methylcyclohexane 2,2,3-trimethylpentane toluene ethylbenzene m-xylene p-xylene o-xylene n-nonane n-propylbenzene p-ethyltoluene 1,3,5-trimethylbenzene 1,2,4-trimethylbenzene
Carrier gas: Linear velocity: FID sensitivity:
Rtx®-1, 60m, 0.32mm ID, 3.0µm (cat.# 10187) 0.5L of C2-C9 gas standard cryogenically concentrated; 15nL/component desorbed onto column. -60°C (hold 5 min.) to 100°C @ 8°C/min., to 150°C @ 6°C/min., then to 240°C @ 8°C/min. helium 30cm/sec. (flow rate: 1.8cc/min.) 64 x 10-12 AFS
23 24 18 19 20 21
22
25 26
31,32 30 33 34
27 28
35
36,37 38
29 13 12 11
14 15
17 16
9 8
10
7
6 4
5
1 2 3
min.
5
10
15
20
25
30
35
GC_EV00019
Permission to publish this chromatogram granted by Radian Corporation.
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Mar 2011
