Pure Chromatography
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Dibenzothiophene (Including C1-C4 Substitution) Elution Area for a Diesel Sample on Rxi-1ms and Rtx-FLD (GCxGC-TOFMS, Extracted Ions)

GC_PC1205
Column | Rxi-1ms 60 m, 0.25 mm ID, 0.25 µm (cat.# 13326) with Rxi-1ms 60 m, 0.25 mm ID, 0.25 µm (cat.# 13326) |
Rtx-FLD 1.5 m, 0.25 mm ID, 0.10 µm, | |
Sample | Diesel fuel #2 composite (cat.# 31093) |
Diluent: | Methylene chloride |
Conc.: | 5,000 µg/mL |
Injection | |
Inj. Vol.: | 1 µL split (split ratio 50:1) |
Liner: | Premium 4 mm Precision inlet liner w/wool (cat.# 23305.1) |
Inj. Temp.: | 275 °C |
Split Vent Flow Rate: | 100 mL/min |
Oven | |
Oven Temp.: | Rxi-1ms: 40 °C (hold 1 min) to 320 °C at 1.3 °C/min (hold 1 min) Rtx-FLD: 45 °C (hold 1 min) to 325 °C at 1.3 °C/min (hold 1 min) |
Carrier Gas | He, corrected constant flow (2 mL/min) |
Modulation | |
Modulator Temp. Offset: | 20 °C |
Second Dimension Separation Time: | 3 sec |
Hot Pulse Time: | 1 sec |
Cool Time between Stages: | 0.5 sec |
Detector | TOFMS |
Transfer Line Temp.: | 300 °C |
Analyzer Type: | TOF |
Source Temp.: | 250 °C |
Electron Energy: | 70 eV |
Mass Defect: | 50 mu/100 u |
Solvent Delay Time: | 10 min |
Tune Type: | PFTBA |
Ionization Mode: | EI |
Acquisition Range: | 45 to 450 amu |
Spectral Acquisition Rate: | 200 spectra/sec |
Instrument | LECO Pegasus 4D GCxGC-TOFMS |
Notes | The Rtx-FLD column is an experimental column and is not yet commercially available. Extracted Ions: 184, 198, 212, 226, 240 |
RELATED CHROMATOGRAM LIBRARY SEARCHES
Sulfur in diesel
,Sulfur speciation
,GCxGC
,Comprehensive Two-Dimensional GC
,Diesel
,Dibenzothiophene
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