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Polycyclic Aromatic Hydrocarbons Infant Formula with and without QuEChERS dSPE Clean-up on Rxi-5Sil MS

ColumnRxi-5Sil MS, 30 m, 0.25 mm ID, 0.25 µm (cat.# 13623)
Standard/SampleLiquid infant formula spiked with: (see details in notes section)
decafluorobiphenyl (cat.# 31842)
EPA Method 8310 PAH Mixture (cat.# 31841)
phenanthrene-d10 (cat.# 31045)
CHROMATOGRAM TRACES
A. extract with clean-up using Q-sep Q210 QuEChERS dSPE clean-up tube (cat.# 26215)
B. extract without dSPE clean-up
Injection
Inj. Vol.:1 µL splitless (hold 0.15 min)
Liner:3.5mm Gooseneck Splitless w/Wool (cat.# 22286-200.1)
Inj. Temp.:300 °C
Oven
Oven Temp.:50 °C (hold 0.5 min) to 290 °C at 25 °C/min to 320 °C at 5 °C/min (hold 5 min)
Carrier GasHe, constant flow
Flow Rate:1.4 mL/min
DetectorMS
Mode:SIM
Transfer Line Temp.:290 °C
Analyzer Type:Quadrupole
Ionization Mode:EI
InstrumentShimadzu 2010 GC & QP2010+ MS
NotesSample Details:
Liquid infant formula spiked at 1μg/mL with decafluorobiphenyl (cat.# 31842) and EPA Method 8310 PAH Mixture (cat.# 31841) and at 0.5μg/mL with internal standard phenanthrene-d10 (cat.# 31045), then extracted with acetonitrile and Q-sep Q110 QuEChERS extraction tube (cat.# 26213)