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Column | Rxi-17Sil MS 60 m, 0.25 mm ID, 0.10 µm (cat.# custom) |
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Rxi-1HT 1 m, 0.25 mm ID, 0.10 µm (cat.# 13950) | |
Standard/Sample | Riser pipe oil from Deepwater Horizon oil spill |
SV internal standard mix (5 ng/µL) (cat.# 31206) | |
Diluent: | Methylene chloride |
Conc.: | 10 mg/mL |
Injection | |
Inj. Vol.: | 1.0 µL split (split ratio 10:1) |
Liner: | Premium 4 mm Precision liner w/wool (cat.# 23305.5) |
Inj. Temp.: | 275 °C |
Oven | |
Oven Temp.: | Rxi-17Sil MS: 40 °C (hold 1 min) to 320 °C at 2.5 °C/min (hold 7 min) Rxi-1HT: 45 °C (hold 1 min) to 325 °C at 2.5 °C/min (hold 7 min) |
Carrier Gas | He, corrected constant flow (1 mL/min) |
Modulation | |
Modulator Temp. Offset: | 20 °C |
Second Dimension Separation Time: | 2.8 sec |
Hot Pulse Time: | 1.0 sec |
Cool Time between Stages: | 0.4 sec |
Detector | MS |
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Mode: | |
Transfer Line Temp.: | 300 °C |
Analyzer Type: | TOF |
Source Temp.: | 250 °C |
Electron Energy: | -70 eV |
Mass Defect: | 100 mu/100 u |
Ionization Mode: | EI |
Acquisition Range: | 45 to 550 amu |
Spectral Acquisition Rate: | 100 spectra/sec |
Instrument | LECO Pegasus 4D GCxGC-TOFMS |
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