Residual Solvents (Class 2 - Mixture A) for Water-Soluble Articles on Rxi-624Sil MS

	Peaks	tR (min)	Conc. (µg/mL)
1.	Methanol	2.281	25.00
2.	Acetonitrile	4.009	3.42
3.	Dichloromethane	4.313	5.00
4.	trans-1,2-Dichloroethene	4.798	7.83
5.	cis-1,2-Dichloroethene	7.028	7.83
6.	Tetrahydrofuran	7.706	5.75
7.	Cyclohexane	8.708	32.33

	Peaks	tR (min)	Conc. (µg/mL)
8.	Methylcyclohexane	14.099	9.83
9.	1,4-Dioxane	15.054	3.17
10.	Toluene	22.018	7.42
11.	Chlorobenzene	26.570	3.00
12.	Ethylbenzene	26.837	3.07
13.	m-Xylene	27.147	10.85
14.	p-Xylene	27.147	2.53
15.	o-Xylene	27.927	1.63

GC_PH1146

Column	Rxi-624Sil MS, 30 m, 0.32 mm ID, 1.80 µm (cat.# 13870)
Sample	Residual solvents class 2 - mix A (cat.# 36271)
Diluent:	Water
Injection	headspace-loop split (split ratio 5:1)
Liner:	1 mm split (cat.# 20972)
Headspace-Loop
Inj. Port Temp.:	140 °C
Instrument:	Tekmar HT3
Inj. Time:	1 min
Transfer Line Temp.:	110 °C
Valve Oven Temp.:	110 °C
Sample Temp.:	80 °C
Sample Equil. Time:	60 min
Vial Pressure:	10 psi
Pressurize Time:	0.5 min
Pressure Equilibration Time:	0.05 min
Loop Pressure:	5 psi
Loop Fill Time:	0.1 min
Oven
Oven Temp.:	40 °C (hold 20 min) to 240 °C at 10 °C/min (hold 20 min)
Carrier Gas	He, constant flow
Linear Velocity:	35 cm/sec
Dead Time:	1.45 min @ 40 °C
Detector	FID @ 250 °C
Data Rate:	5 Hz
Instrument	Agilent/HP6890 GC
Acknowledgement	Teledyne Tekmar

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