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Fast Dual Column Analysis of Organochlorine Pesticides (EPA Method 8081) Using a GC Accelerator Kit and Rtx-CLPesticides and Rtx-CLPesticides2 Column Set

ColumnsRtx-CLPesticides 30 m, 0.25 mm ID, 0.25 µm (cat.# 11123-051)
and Rtx-CLPesticides2 30 m, 0.25 mm ID, 0.20 µm (cat.# 11323-051)
using Rxi guard column 5 m, 0.25 mm ID (cat.# 10029)
with universal angled “Y” Press-Tight connector (cat.# 20403-261)
Standard/SampleOrganochlorine pesticide mix AB #2 (cat.# 32292)
Pesticide surrogate mix (cat.# 32453)
Inj. Vol.:2 µL splitless (hold 0.3 min)
Liner:Topaz 4 mm ID single taper inlet liner w/wool (cat.# 23303)
Inj. Temp.:250 °C
Purge Flow:40 mL/min
Oven Temp.:120 °C (hold 0.3 min) to 200 °C at 60 °C/min to 230 °C at 25 °C/min to 320 °C at 35 °C/min (hold 1.5 min)
Carrier GasH2, constant flow
Linear Velocity:100 cm/sec
DetectorMicro-ECD @ 330 °C
Make-up Gas Flow Rate:60 mL/min
Make-up Gas Type:N2
Data Rate:50 Hz
InstrumentAgilent 7890A GC
NotesA GC Accelerator oven insert kit (cat.# 23849) was installed in the instrument to speed up analysis. The analytical columns were custom products that were not on cages.