Semivolatile GC-MS Tune Verification Mix on Rxi-5Sil MS

	Peaks
1.	Pentachlorophenol
2.	Decafluorotriphenylphosphine

	Peaks
3.	Benzidine
4.	p,p'-DDT

GC_EV1273

Column	Rxi-5Sil MS, 30 m, 0.25 mm ID, 0.25 µm (cat.# 13623)
Sample	GC-MS tuning mixture (cat.# 31615)
Diluent:	Dichloromethane
Conc.:	50 ng/µL
Injection
Inj. Vol.:	1 µL pulsed splitless (hold 0.59 min)
Liner:	Premium 4 mm single taper w/wool (cat.# 23303.5)
Inj. Temp.:	270 °C
Pulse Pressure:	30 psi (206.8kPa)
Pulse Time:	0.64 min
Purge Flow:	100 mL/min
Oven
Oven Temp.:	40 °C (hold 1 min) to 280 °C at 25 °C/min to 320 °C at 5 °C/min (hold 1 min)
Carrier Gas	He, constant flow
Flow Rate:	1.2 mL/min
Detector	MS
Mode:	Scan
Transfer Line Temp.:	280 °C
Analyzer Type:	Quadrupole
Source Temp.:	276 °C
Quad Temp.:	150 °C
Solvent Delay Time:	2.19 min
Tune Type:	DFTPP
Ionization Mode:	EI
Scan Range:	35-550 amu
Scan Rate:	5.36 scans/sec
Instrument	Agilent 7890A GC & 5975C MSD
Notes	7890 Siltek-treated EZ Twist Top split/splitless injection port (cat.# 22178) Flip Seal dual Vespel ring inlet seal (cat.# 23411)

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Appendix IX

,

SVOA

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8270

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semivolatiles

,

5sil MS

,

RXI

,

rxi-5sil

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