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Pesticides and Brominated Flame Retardants by EPA Method 527 on Rxi-5Sil MS

ColumnRxi-5Sil MS, 15 m, 0.25 mm ID, 0.25 µm (cat.# 13620)
using IP Deactivated Guard Column 5 m, 0.53 mm ID (cat.# 10045)
with Universal Press-Tight Connectors (cat.# 20429)
SamplePBDE Mix (cat.# 33098)
Pesticides Mix #1, Method 527 (cat.# 33007)
Pesticides Mix #2, Method 527 (cat.# 33008)
Internal Standard, Method 527 (cat.# 33010)
Surrogate Standard, Method 527 (cat.# 33009)
Diluent:Ethyl acetate:methylene chloride (1:1)
Conc.:40 pg/µL (500 pg on-column)
Injection
Inj. Vol.:12.5 µL splitless (hold 0.583 min)
Liner:Gooseneck Splitless (4mm) w/Semivolatiles Wool (cat.# 20799-231.5)
Inj. Temp.:250 °C
Purge Flow:40 mL/min
Oven
Oven Temp.:40 °C (hold 0.60 min) to 320 °C at 30 °C/min (hold 1.07 min)
Carrier GasHe, constant flow
Flow Rate:2 mL/min
DetectorMS
Mode:
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:3.33 min
Acquisition Range:45 - 750 amu
Spectral Acquisition Rate:10 spectra/sec
InstrumentLECO Pegasus 4D GCxGC-TOFMS
NotesCarrier Gas Flow: 2 mL/min. corrected constant flow via pressure ramps