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Stir Bar Sorptive Extraction Cleaned Up Sample - QuEChERS Extract of NIST SRM Mussel (Rxi-17Sil MS and Rxi-1ms, m/z 178)
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Stir Bar Sorptive Extraction Cleaned Up Sample - QuEChERS Extract of NIST SRM Mussel (Rxi-17Sil MS and Rxi-1ms, m/z 178)

PeaksRT 1 (sec.)RT 2 (sec.)
1.Phenanthrene16770.75
2.Anthracene16890.75
image
GC_EV1232
ColumnRxi-17Sil MS 15 m, 0.25 mm ID, 0.25 µm (cat.# 14120)
Rxi-1ms 0.7 m, 0.15 mm ID, 0.15 µm (cat.# 43800)
Sample
Diluent:Methylene chloride
Injection
Inj. Vol.:1 µL splitless (hold 1 min)
Liner:Premium 4mm Single Taper w/Wool (cat.# 23303.1)
Inj. Temp.:250 °C
Purge Flow:40 mL/min
Oven
Oven Temp.:Rxi-17Sil MS: 40 °C (hold 1 min) to 320 °C at 5 °C/min (hold 3 min)
Rxi-1ms: 45 °C (hold 1 min) to 325 °C at 5 °C/min (hold 3 min)
Carrier GasHe, corrected constant flow (2.2 mL/min)
Modulation
Modulator Temp. Offset:20 °C
Second Dimension Separation Time:3 sec
Hot Pulse Time:0.9 sec
Cool Time between Stages:0.6 sec
DetectorTOFMS
Transfer Line Temp.:290 °C
Analyzer Type:TOF
Source Temp.:225 °C
Electron Energy:70 eV
Mass Defect:0 mu/100 u
Solvent Delay Time:4 min
Tune Type:PFTBA
Ionization Mode:EI
Acquisition Range:45-550 amu
Spectral Acquisition Rate:200 spectra/sec
InstrumentLECO Pegasus 4D GCxGC-TOFMS
NotesRxi-1ms (cat.# 43800) is a 10 m column. A 0.7 m section was used here as a second dimension column.
AcknowledgementEd Pfannkoch and Jackie Whitecavage of Gerstel Inc. USA for providing the mussel extract for GCxGC analysis.
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