Peak Shape Comparison of Early Eluting Semivolatiles Using Split (10:1) and Splitless Injection at 80 °C Oven Start Temp.

Oven
Column	Rxi-5Sil MS, 30 m, 0.25 mm ID, 0.25 µm (cat.# 13623)
Standard/Sample	8270 MegaMix (cat.# 31850)
	Benzoic acid (cat.# 31879)
	8270 Benzidines Mix (cat.# 31852)
	Acid Surrogate Mix (4/89 SOW) (cat.# 31025)
	1,4-dioxane (cat.# 31853)
	Revised B/N Surrogate Mix (cat.# 31887)
	SV Internal Standard Mix (cat.# 31206)
Diluent:	Methylene chloride
Conc.:	40 µg/mL
Injection	splitless
Inj. Temp.:	270 °C
Oven Temp.:	80 °C (hold 1 min) to 320 °C at 25 °C/min to 330 °C at 5 °C/min (hold 2 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.:	250 °C
Quad Temp.:	150 °C
Tune Type:	DFTPP
Ionization Mode:	EI
Scan Range:	35-550 amu
Instrument	Agilent 7890A GC & 5975C MSD
Notes	Split: 1 μL split (10:1) Splitless: 1 μL splitless (0.5 min.)

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