Pure Chromatography
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Class 1 Residual Solvents for USP <467> Water-Soluble Articles on Rxi-624Sil MS
Peaks | tR (min) | Conc. (µg/mL) | |
---|---|---|---|
1. | 1,1-Dichloroethene![]() | 3.586 | 0.07 |
2. | 1,1,1-Trichloroethane![]() | 8.536 | 0.08 |
Peaks | tR (min) | Conc. (µg/mL) | |
---|---|---|---|
3. | Carbon tetrachloride![]() | 9.042 | 0.03 |
4. | Benzene![]() | 9.787 | 0.02 |
5. | 1,2-Dichloroethane![]() | 10.112 | 0.04 |
* DMSO interference

GC_PH1160
Column | Rxi-624Sil MS, 30 m, 0.32 mm ID, 1.80 µm (cat.# 13870) |
Sample | Residual Solvents - Class 1 (cat.# 36279) |
Diluent: | water |
Injection | headspace-loop split (split ratio 5:1) |
Liner: | 1mm 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 |
Notes | Columns were run under identical conditions. |
Acknowledgement | Teledyne Tekmar |
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