Gas Chromatography Methodology
| GC/MS | |
|---|---|
| Instruments | Agilent 6890 gas chromatograph equipped with a 5973N mass selective detector |
| Column | J&W, DB624 30 m × 25 mm × 1.4 μm film |
| Carrier | Helium at 1.0 mL/min |
| Injection | 2 μL at 220 °C |
| Split Flow | 20 mL/min |
| Oven Program | 70 °C (5 min), 5 °C/min to 100 °C (5 min), 10 °C/min to 250 °C (10 min) |
| MS Detection Mode | EI+, 70 eV |
| Range (m/z) | 29–400 amu |
| GC-MS with Cool On-Column Injection | |
|---|---|
| Instruments | Agilent 6890 gas chromatograph equipped with a 5973N mass selective detector |
| Column | J&W DB624 30 m × 25 mm × 1.4 μm film |
| Carrier | Helium at 13 psi |
| Injection | 0.5–1 μL. Programmed injection (oven tracking mode) |
| Oven Program | 50 °C (5 min), 10 °C/min to 200 °C (10 min) |
| MS Detection Mode | EI+, 70 eV |
| Scan Range | 29–550 amu |