PCBs and BFRs on Rxi-XLB and Rxi-17Sil MS (GCxGC)

GC_EV1237

Column	Rxi-XLB 30 m, 0.25 mm ID, 0.25 µm (cat.# 13723)
	Rxi-17Sil MS 1 m, 0.15 mm ID, 0.15 µm (cat.# 43820)   with IP deactivated guard column 0.2 m, 0.15 mm ID
Sample	PBDE mix (cat.# 33098)
	PCB congener mix, Method 8082A (cat.# 32416)
Diluent:	Isooctane
Conc.:	250 pg/µL
Injection
Inj. Vol.:	1.0 µL splitless (hold 1.0 min)
Liner:	Premium 4 mm single taper w/wool (cat.# 23303.5)
Inj. Temp.:	250 °C
Purge Flow:	20 mL/min
Oven
Oven Temp.:	Rxi-XLB: 80 °C (hold 1 min) to 120 °C at 10 °C/min to 300 °C at 3 °C/min Rxi-17Sil MS: 85 °C (hold 1 min) to 125 °C at 10 °C/min to 305 °C at 3 °C/min
Carrier Gas	He, corrected constant flow (2.0 mL/min)
Modulation
Modulator Temp. Offset:	20 °C
Second Dimension Separation Time:	3.5 sec
Hot Pulse Time:	1.25 sec
Cool Time between Stages:	0.50 sec
Detector	µ-ECD @ 325 °C
Data Rate:	50 Hz
Instrument	Agilent/HP6890 GC
Notes	The Rxi-17Sil MS column (cat.# 43820) is a 10 m column. A 1 m section was used as a second dimension column. Guard column was connected using a Siltek-treated universal Press-Tight connector (cat.# 20480).

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