USP <467> Residual Solvents Class 3 MIx A on Rxi-624Sil MS

	Peaks	t_R (min)	Conc. (µg/mL)
1.	n-Pentane	2.71	5000
2.	Ethanol	2.82	5000
3.	Diethyl ether	2.96	5000
4.	Acetone	3.31	5000
5.	Ethyl formate	3.51	5000
6.	2-Propanol	3.52	5000
7.	Methyl acetate	3.70	5000
8.	Methyl tert-butyl ether	4.12	5000
9.	1-Propanol	4.68	5000
10.	2-Butanone	5.22	5000
11.	Ethyl acetate	5.29	5000
12.	2-Butanol	5.48	5000
13.	Isopropyl acetate	6.25	5000
14.	Isobutanol	6.43	5000
15.	n-Heptane	6.77	5000
16.	1-Butanol	7.23	5000
17.	Propyl acetate	8.01	5000
18.	4-Methyl-2-pentanone	9.39	5000
19.	3-Methyl-1-butanol	9.65	5000
20.	Isobutyl acetate	10.16	5000
21.	1-Pentanol	10.94	5000
22.	Butyl acetate	11.54	5000
23.	Dimethyl sulfoxide	13.24	5000
24.	Anisole	13.56	5000

GC_PH1178

Column	Rxi-624Sil MS, 30 m, 0.32 mm ID, 1.80 µm (cat.# 13870)
Sample	Residual Solvents Class 3 - Mix A (cat.# 36013)
Conc.:	5000 µg/mL split 100:1
Injection	headspace-loop split (split ratio 100:1)
Liner:	Topaz 1 mm Split (cat.# 23333)
Headspace-Loop
Inj. Port Temp.:	200 °C
Instrument:	Tekmar HT-3
Inj. Time:	1.0 min
Transfer Line Temp.:	105 °C
Valve Oven Temp.:	105 °C
Standby flow rate:	50 mL/min
Sample Temp.:	80 °C
Platen temp equil. time:	80 min
Sample Equil. Time:	1.0 min
Mixer time:	5.0 min
Mixing level:	5
Mixer stabilize time:	0.50 min
Vial Pressure:	10 psi
Pressurize Time:	5.0 min
Pressure Equilibration Time:	0.20 min
Loop Pressure:	5 psi
Loop Fill Time:	2.0 min
Oven
Oven Temp.:	35 °C (hold 3 min) to 60 °C at 24 °C/min to 80 °C at 3 °C/min to 280 °C at 25 °C/min
Carrier Gas	He, constant flow
Flow Rate:	2.7 mL/min
Linear Velocity:	41 cm/sec
Detector	FID @ 300 °C
Make-up Gas Flow Rate:	45 mL/min
Make-up Gas Type:	N₂
Hydrogen flow:	40 mL/min
Air flow:	450 mL/min
Data Rate:	20 Hz
Instrument	Agilent/HP6890 GC

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USP <467> Residual Solvents Class 3 MIx A on Rxi-624Sil MS

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