AIR
MONI TORING
Si lcoCan™ Canisters
5
Phone: 800-356-1688 or 814-353-1300
Figure 2
TO-15 volatile organics at 10ppbv exhibit excellent stability after 15 days in a SilcoCan™ canister.
GC_EV00731
Column:
Rtx
®
-1 60m, 0.32mm ID, 1.0µm (cat.# 10157)
Sample:
200mL TO-15 standard (cat.# 34436) humidified to 70% RH,
10ppbv each analyte
Concentrator:
Nutech 3550 Preconcentrator; 200mL sample concentrated
at -160°C, thermally desorbed at 150°C, cryofocused at -185°C,
thermally desorbed to the column at 150°C.
Carrier gas:
helium
Flow rate:
1.2mL/min.
Oven temp.:
30°C (hold 4 min.) to 175°C @ 9°C/min., to 200°C @ 40°C/min.
Det:
MS
Transfer line
temp.:
280°C
Scan range:
35-265amu
Ionization:
EI
Mode:
scan
Compound
ppbv
recovered
1. dichlorofluoromethane
9.2
2. chloromethane
9.6
3. dichlorotetrafluoroethane
8.6
4. vinyl chloride
8.5
5. 1,3-butadiene
8.6
6. bromomethane
8.8
7. chloroethane
7.9
8. bromoethene
8.5
9. acetone
8.9
10. trichlorofluoromethane
9.7
11. isopropyl alcohol
9.2
12. 1,1-dichloroethene
9.5
13. methylene chloride
8.7
14. 3-chloropropene
8.7
15. carbon disulfide
8.8
16. Freon
®
TF
9.6
17.
trans
-1,2-dichloroethene
9.2
18. 1,1-dichloroethane
9.5
19. methyl
tert
-butyl ether
9.2
20. methyl ethyl ketone
9.0
21.
cis
-1,2-dichloroethene
9.3
22. bromochloromethane
10.0
23.
n
-hexane
9.2
24. chloroform
9.9
25. tetrahydrofuran
8.4
26. 1,2-dichloroethane
9.0
27. 1,1,1-trichloroethane
9.4
28. benzene
9.2
29. carbon tetrachloride
8.3
30. cyclohexane
9.3
31. 1,4-difluorobenzene
10.0
32. 1,2-dichloropropane
9.8
33. bromodichloromethane
10.0
34. trichloroethene
9.8
35. 1,4-dioxane
12.0
36. 2,2,4-trimethylpentane
10.0
37.
n
-heptane
9.4
38.
cis
-1,3-dichloropropene
12.0
39. methyl isobutyl ketone
10.0
40.
trans
-1,3-dichloropropene 11.0
41. 1,1,2-trichloroethane
11.0
42. toluene
12.0
43. methyl butyl ketone
11.0
44. dibromochloromethane
12.0
45. 1,2-dibromoethane
12.0
46. tetrachloroethene
12.0
47. chlorobenzene-d5
10.0
48. chlorobenzene
8.0
49. ethylbenzene
9.0
50.
m
- &
p
-xylene
16.0
51. bromoform
8.3
52. styrene
7.6
53. 1,1,2,2-tetrachloroethane
8.3
54.
o
-xylene
8.0
55. 2-chlorotoluene
10.0
56. 4-ethyltoluene
9.4
57. 1,3,5-trimethylbenzene
10.0
58. 1,2,4-trimethylbenzene
10.0
59. 1,3-dichlorobenzene
10.0
60. 1,4-dichlorobenzene
10.0
61. 1,2-dichlorobenzene
10.0
62. 1,2,4-trichlorobenzene
12.0
63. hexachlorobutadiene
11.0
5
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