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Gasoline Range Organics Oxygenates Rtx-VMS

Column | Rtx-VMS, 30 m, 0.25 mm ID, 1.40 µm (cat.# 19915) |
Sample | 8260B MegaMix calibration mix kit (cat.# 30475) |
California oxygenates mix (cat.# 30465) | |
VOA calibration mix #1 (ketones) (cat.# 30006) | |
502.2 Calibration mix #1 (gases) (cat.# 30042) | |
Unleaded gasoline: unweathered (cat.# 30096) | |
8260A Surrogate mix (cat.# 30240) | |
8260 Internal standard mix (cat.# 30074) | |
Non-oxygenated unleaded gasoline (cat.# custom) | |
Injection | purge and trap split (split ratio 25:1) |
Inj. Temp.: | 250 °C |
Purge and Trap | |
Instrument: | O.I. 4560 Purge and Trap Concentrator |
Trap Type: | #10 Tenax/silica gel/carbon molecular sieve |
Purge: | 11 min @ 20 °C, flow 38 mL/min |
Desorb: | 1.0 min @ 190 °C, flow 32 mL/min |
Bake: | 10 min @ 210 °C |
Oven | |
Oven Temp.: | 35 °C (hold 7 min) to 90 °C at 4 °C/min to 220 °C at 45 °C/min (hold 1 min) |
Carrier Gas | He, constant flow |
Flow Rate: | 1.3 mL/min |
Dead Time: | 1.47 min @ 35 °C |
Detector | MS |
Mode: | Scan |
Tune Type: | PFTBA/BFB |
Scan Range: | 35-260 amu |
Instrument | Aglient 5971A GC/MS |
Notes | 10 mL sample @ 40°C |
Acknowledgement | Purge and Trap courtesy of O.I. Analytical. |
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