Restek Corporation 110 Benner Circle Bellefonte, PA 16823
814-353-1300 • 800-356-1688 • Fax: 814-353-1309 •
EPAMethod 624
Rtx
®
-VMS
1. chloromethane
2. vinyl chloride
3. bromomethane
4. chloroethane
5. trichlorofluoromethane
6. 1,1-dichloroethene
7. methylene chloride
8.
trans
-1,2-dichloroethene
9. 1,1-dichloroethane
10. bromochloromethane
11. chloroform
12. carbon tetrachloride
13. 1,1,1-trichloroethane
14. benzene
15. pentafluorobenzene
16. 1,2-dichloroethane
17. fluorobenzene
18. trichloroethene
19. 1,2-dichloropropane
20. bromodichloromethane
21. 2-chloroethyl vinyl ether
22.
cis
-1,3-dichloropropene
23. toluene
24. tetrachloroethene
25.
trans
-1,3-dichloropropene
26. 2-bromo-1-chloropropane
27. 1,1,2-trichloroethane
28. dibromochloromethane
29. ethylbenzene
30. chlorobenzene
31. bromoform
32. 4-bromofluorobenzene
33. 1,4-dichlorobutane
34. 1,1,2,2-tetrachloroethane
35. 1,3-dichlorobenzene
36. 1,4-dichlorobenzene
37. 1,2-dichlorobenzene
1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00 11.00 12.00 13.00 14.00 15.00
30m, 0.25mm ID, 1.40µmRtx
®
-VMS (cat#19915)
Conc.:
20 ppb in 5mL of ROwater
Concentrator:
Tekmar LSC-3000 Purge andTrap
Trap:
Vocarb 3000 (typeK)
Purge:
11min.@40mL/min.@ambient temperature.
Dry purge:
1min.@40mL/min. (MCS bypassed using
Silcosteel
®
tubing)
Desorb preheat:245°C
Desorb:
250°C for 2min. , Flow 10mL/min.
Bake:
260°C for 8min.
GC Interface:
1:10 split at injection port. 1mm ID sleeve.
GC:
HP 6890
Oven temp.:
40°C (hold 4min.) to 95°C@24°C/min. (hold 3min.), to
210°C@40°C/min. (hold 6min.)
Carrier gas:
helium@~1mL/min. constant flow
Adjust dichlorodifluoromethane to a retention time of 2.54min.@40°C
Detector:
HP 5973MSD
Scan range:
25-300amu
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17 18
19
20
21 22
23 24,25
27
26
28
29 30
31
32
33,34 35
36
37
GC_EV00425
