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Riser Pipe Oil from Deepwater Horizon Oil Spill on Rxi-17Sil and Rxi-1HT (GCxGC-TOFMS)

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GC_PC1252
ColumnRxi-17Sil MS 60 m, 0.25 mm ID, 0.10 µm (cat.# custom)
Rxi-1HT 1 m, 0.25 mm ID, 0.10 µm (cat.# 13950)
SampleRiser 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 GasHe, 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
DetectorMS
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
InstrumentLECO Pegasus 4D GCxGC-TOFMS
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