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

Injection
Column	Rxi-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)
Sample	PBDE 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.:	80 pg/µL (1 ng on-column)
Inj. Vol.:	12.5 µL splitless (hold 0.583 min)
Liner:	Gooseneck Splitless (4 mm) 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 Gas	He, constant flow
Flow Rate:	2 mL/min

Detector	MS
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
Instrument	LECO Pegasus 4D GCxGC-TOFMS
Notes	Carrier Gas Flow: 2 mL/min. corrected constant flow via pressure ramps

Download PDF