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Polycyclic Aromatic Hydrocarbons Infant Formula With and Without QuEChERS dSPE Cleanup on Rxi-5Sil MS

GC_FF01122
ColumnRxi®-5Sil MS, 30 m, 0.25 mm ID, 0.25 µm (cat.# 13623)
SampleLiquid infant formula spiked with: (see details in notes section)
Decafluorobiphenyl (cat.# 31842)
EPA Method 8310 PAH Mixture (cat.# 31841)
Phenanthrene-d10 (cat.# 31045)
Injection
Inj. Vol.:1 µL splitless (hold 0.15 min)
Liner:3.5 mm 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:Scan
Transfer Line Temp.:290 °C
Analyzer Type:Quadrupole
Ionization Mode:EI
Scan Range:100-350 amu
InstrumentShimadzu 2010 GC & QP2010+ MS
NotesSample Details:
Liquid infant formula spiked at 1 μg/mL with decafluorobiphenyl (cat.# 31842) and EPA Method 8310 PAH mixture (cat.# 31841) and at 0.5 μg/mL with internal standard phenanthrene-d10 (cat.# 31045), then extracted with acetonitrile and Q-sep™ QuEChERS extraction salts.

A. Extract with cleanup using Q-sep™ QuEChERS dSPE cleanup tube (cat.# 26215)
B. Extract without dSPE clean-up