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Peaks | |
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23. | Trichloroethene |
24. | Dibromomethane |
25. | 1,2-Dichloropropane |
26. | Bromodichloromethane |
27. | 1-Bromo-2-chloroethane (SS) |
28. | cis-1,3-Dichloropropene |
29. | Toluene |
30. | Tetrachloroethene |
31. | trans-1,3-Dichloropropene |
32. | 1,1,2-Trichloroethane |
33. | Dibromochloromethane |
34. | 1,3-Dichloropropane |
35. | 1,2-Dibromoethane |
36. | Chlorobenzene |
37. | Ethylbenzene |
38. | 1,1,1,2-Tetrachloroethane |
39. | m-Xylene |
40. | p-Xylene |
41. | 1-Chloro-2-fluorobenzene (SS) |
42. | o-Xylene |
43. | Styrene |
44. | Bromoform |
Column | Rtx-502.2, 75 m, 0.45 mm ID, 2.55 µm (cat.# 10986) |
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with Universal “Y” Press-Tight Connector (cat.# 20405) | |
Standard/Sample | |
Diluent: | RO water |
Conc.: | 10 ppb in 5 mL |
Injection | purge and trap splitless |
Purge and Trap | |
Instrument: | Tekmar LSC3100 Purge and Trap |
Trap Type: | Vocarb 3000 |
Purge: | 11 min, flow 40 mL/min |
Dry Purge: | 1 min, flow 40 mL/min |
Desorb Preheat Temp.: | 245 °C |
Desorb: | 2 min @ 250 °C |
Bake: | 8 min @ 260 °C |
Interface Connection: | direct |
Transfer Line Tubing: | 0.32mm ID Siltek Guard Column (cat.# 10027) |
Oven | |
Oven Temp.: | 50 °C (hold 2 min) to 70 °C at 2 °C/min to 130 °C at 9 °C/min to 200 °C at 40 °C/min (hold 5 min) |
Carrier Gas | He |
Detector | µGold Tandem PID/Hall |
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Reaction Gas Flow: | 7 mL/min |
Ionization Potential: | 0.35 mV |
Base Temp.: | 200 °C |
Instrument | Finnigan 9001 |
Notes | Carrier Gas: constant pressure @ ~ 10 mL/min. Adjust dichlorodifluoromethane to a retention time of 2.28 min. @ 50°C on the Rtx-VGC column. PID: makeup 7mL/min. Hall2000: RxnGas 25mL/min., RxnTemp 940°C, Propanol Flow 470 μL/min. Primary Column: Rtx-VGC, 75m, 0.45mm ID, 2.55μm (cat.# 19409) |
Acknowledgement | Finnigan 9001 GC, μGold Tandem Photoionization/HALL 2000 Electrolytic Conductivity Detector provided courtesy of Thermo Finnigan GC & GC/MS Division, 2215 Grand Avenue Pkwy, Austin, Texas 78728 |
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