Mass Spectra of Pentachloroanisole QuEChERS Extracts of Tylenol Spiked with Anisoles and TBA on Rxi-5Sil MS

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GC_GN1153
ColumnRxi-5Sil MS, 30 m, 0.25 mm ID, 0.25 µm (cat.# 13623)
SampleQuEChERS extracts of Tylenol spiked with TBA and anisoles
Diluent:Acetonitrile
Injection
Inj. Vol.:1 µL splitless (hold 1 min)
Liner:Gooseneck Splitless (4mm) w/Wool (cat.# 22405)
Inj. Temp.:250 °C
Purge Flow:40 mL/min
Oven
Oven Temp.:90 °C (hold 1 min) to 310 °C at 4 °C/min (hold 2 min)
Carrier GasHe, constant flow
Flow Rate:1.2 mL/min
Linear Velocity:40 cm/sec
DetectorTOFMS
Transfer Line Temp.:290 °C
Analyzer Type:TOF
Source Temp.:225 °C
Electron Energy:70 eV
Mass Defect:-20 mu/100 u
Solvent Delay Time:2 min
Tune Type:PFTBA
Ionization Mode:EI
Acquisition Range:45 to 550 amu
Spectral Acquisition Rate:5
InstrumentLECO Pegasus 4D GCxGC-TOFMS
NotesThe caliper spectrum taken at the peak apex of pentachloroanisole is representative of the overwhelming acetaminophen peak, but TOF-MS allows spectral deconvolution to produce a sample spectrum that matches well with the reference spectrum. No dSPE was performed on this sample; see Applications Note GNAN1263 for complete sample fortification and extraction details.
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