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Florisil SPE Cleanup of EPA 8081 Pesticides on Rtx-CLPesticides2

ColumnRtx-CLPesticides2, 30 m, 0.32 mm ID, 0.25 µm (cat.# 11324)
using Rxi guard column 5 m, 0.32 mm ID (cat.# 10039)
with universal “Y” Press-Tight connector (cat.# 20406-261)
Standard/Sample2,4,5,6-Tetrachloro-m-xylene (cat.# 32027)
Decachlorobiphenyl (BZ #209) (cat.# 32029)
Organochlorine pesticide mix AB #2 (cat.# 32292)
Inj. Vol.:2 µL splitless (hold 0.75 min)
Liner:Premium 4 mm single taper w/wool (cat.# 23303.5)
Inj. Temp.:250 °C
Purge Flow:50 mL/min
Oven Temp.:110 °C (hold 0.5 min) to 320 °C at 15 °C/min (hold 5 min)
Carrier GasHe, constant flow
Flow Rate:3.5 mL/min
Detectorµ-ECD @ 330 °C
Make-up Gas Flow Rate:50 mL/min
Make-up Gas Type:N2
Data Rate:50 Hz
InstrumentAgilent/HP6890 GC
NotesSPE: Condition Florisil tube (cat.# 24034) with 6 mL hexane. Elute with hexane:acetone (90:10), collecting 10 mL. Concentrate to 1 mL.