Volatile Organic Compounds by Purge and Trap GC-MS on Zebron ZB-624PLUS GC Column at 1ppb GC Conditions | Official Method: | EPA 624 | | Column: | Zebron ZB-624plus, GC Cap. Column 30m x 0.25mm x 1.4um, Ea | | Part No: | 7HG-G040-27 | | Phase Name: | ZB-624plus | | System: | HP 7890 HP GC/MS System (Unknown) | | Sample Notes: | Purge & Trap
Trap Type K
Valve Oven Temp. 140ºC
Transfer Line Temp. 140ºC
Trap Temp. 35ºC
Moisture Reduction Trap (MoRT) Temp. 39ºC
Purge Time 11 min
Purge Flow 40mL/min
Dry Purge Temp. Off
Dry Purge Flow 40mL/min
Dry Purge Time 1.0 min
Desorb Pressure Control On
Desorb Pressure 5psi
Desorb Time 2.0 min
Desorb Preheat Delay 10 sec
Desorb Temp. 250ºC
Moisture Reduction Trap (MoRT) Bake Temp. 250ºC
Bake Temp 210ºC
Sparge Vessel Bake Temp. 110ºC
Bake Time 6 min
Bake Flow 40mL/min
Purge and Trap Auto-Sampler EST Analytical Centurion WS
Sample Type Water
Internal Standard Vol. 5µL
Sample Volume 5mL
Purge and Trap/GCMS configuration:
Recommended trap: 1/3 Tenax 1/3 silica gel 1/3 active carbon
Purge Flow: 40ml/min
Purge Temp: can be heated up to 40C
Preheat time: 2min
Purge Time: 11min
Dry Purge: 1min
Predesorb temp: 180C
Desorb Temp: 190C
Desorb Time: 2min
Bake Temp: 200C
Bake Time: 6min |
1. 1,1,1,2-Tetrachloroethane 3. 1,1,2,2-Tetrachloroethane 8. 1,2,3-Trichlorobenzene 9. 1,2,3-Trichloropropane 10. 1,2,4-Trichlorobenzene 11. 1,2,4-Trimethylbenzene 13. 1,2-Dibromo-3-chloropropane 17. 1,3,5-Trimethylbenzene 21. 1,4-Dichlorobenzene-d4 (IS) 22. 1-chloro-2,3-epoxypropane 24. 2-chloro-1,3-butadiene 35. Chlorobenzene-d5 (IS) 37. cis-1,2-Dichoroethene 38. cis-1,3-Dichloropropene 40. Dibromofluoromethane SUR 57. trans-1,2-Dichloroethene 58. trans-1,3-Dichloropropene |