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SAMPLE HANDLING |
AIR MONITORING
Canisters
Newest surface technology
To ensure sample stability, SilcoCan®
canisters are deactivated with
Restek’s innovative Siltek® surface
treatment, which chemically bonds
a fused silica layer to the metal inner
surface of the canister. This layer
offers unsurpassed inertness for
active compounds, including polar
and sulfur-containing molecules. It
will not crack, chip, or flake off,
despite harsh handling in the field
or during transport.
Optional gauge
• Quickly confirm vacuum or
pressure inside canister.
• Monitor pressure changes.
• Fully protected by canister frame.
• Can be heated to 90°C during
cleaning.
Serial-controlled
label
For quick, sure
identification.
Enhanced valve
and canister
bracket
Canister holder and
valve bracket protect
canister, tube stub,
and valve.
1
/
4
" tube stub
Allows user to
interchange valves.
US EPA TO-15 compounds on an Rtx®-1 column.
Column:
Rtx
®
-1, 60m, 0.32mm ID, 1.0µm (cat.# 10157)
Sample:
TO-15 standard (cat.# 34436) humidified to 33% RH in a 6L SilcoCan
®
canister (cat.# 24182)
Concentrator:
Nutech 3550A Preconcentrator; 300mL sample concentrated at -160°C, thermally desorbed at
150°C, cryofocused at -185°C, thermally desorbed to column at 150°C
Carrier gas:
helium, constant flow
Flow rate:
1.2mL/min.
Oven temp.:
30°C (hold 4 min.) to 175°C @ 8°C/min., to 220°C @ 20°C/min. (hold 2 min.)
Det.:
MS
Transfer line
temp.:
150°C
Scan range:
35–280amu
Ionization:
EI
Mode:
scan
1. propylene
2. Freon
®
12 (dichlorodifluoromethane)
3. chloromethane
4. Freon
®
114
(dichlorotetrafluoroethane)
5. vinyl chloride
6. 1,3-butadiene
7. bromomethane
8. chloroethane
9. carbon disulfide
10. acetone
11. Freon
®
11 (trichlorofluoromethane)
12. isopropyl alcohol
13. 1,1-dichloroethene
14. methylene chloride
15. Freon
®
113
1,1,2-trichloro-1,2,2-trifluoroethane)
16.
trans
-1,2-dichloroethene
17. 1,1-dichloroethane
18. methyl
tert
-butyl ether
19. vinyl acetate
20. methyl ethyl ketone
21.
cis
-1,2-dichloroethene
22. hexane
23. chloroform
24. ethyl acetate
25. tetrahydrofuran
26. 1,2-dichloroethane
27. 1,1,1-trichloroethane
28. benzene
29. carbon tetrachloride
30. cyclohexane
31. 1,2-dichloropropane
32. trichloroethylene
33. bromodichloromethane
34. 1,4-dioxane
35. heptane
36.
cis
-1,3-dichloropropene
37. methyl isobutyl ketone
38.
trans
-1,3-dichloropropene
39. 1,1,2-trichloroethane
40. toluene
41. methyl butyl ketone
42. dibromochloromethane
43. 1,2-dibromoethane
44. tetrachloroethylene
45. chlorobenzene
46. ethylbenzene
47.
p
-xylene
48.
m
-xylene
49. bromoform
50. styrene
51.
o
-xylene
52. 1,1,2,2-tetrachloroethane
53. 4-ethyltoluene
54. 1,3,5-trimethylbenzene
55. 1,2,4-trimethylbenzene
56. 1,3-dichlorobenzene
57. benzyl chloride
58. 1,4-dichlorobenzene
59. 1,2-dichlorobenzene
60. 1,2,4-trichlorobenzene
61. hexachloro-1,3-butadiene
GC_AR00748
Anatomy of a SilcoCan® Canister
More
Chromatograms
p. 605-610
Website :
E-mail :
TelNo : 03 9762 2034 . . . in AUSTRALIA
Mar 2011
