Innovative Chromatography Products
www.restek.it
www.restek.it
Food Packaging Volatiles by Purge & Trap GC/MS on Rtx-5MS
| Peaks | |
|---|---|
| 1. | Ethyl acetate |
| 2. | Toluene |
| 3. | 4-Heptanone |
| 4. | n-Butyl ether |
| 5. | Styrene |
| 6. | Alkanes |
GC_FF00462
| Column | Rtx-5MS, 30 m, 0.25 mm ID, 1.00 µm (cat.# 12653) |
| Sample | Overwrap, inner bowl |
| Injection | purge and trap split (split ratio 20:1) |
| Liner: | 1 mm ID |
| Inj. Temp.: | 250 °C |
| Purge and Trap | |
| Instrument: | Tekmar LSC-3100 purge & trap |
| Trap Type: | Vocarb 3000, type K |
| Purge: | 10 min @ 60 °C, flow 40 mL/min |
| Dry Purge: | 3 min, flow 40 mL/min |
| Desorb Preheat Temp.: | 220 °C |
| Desorb: | 2 min @ 245 °C, flow 40 mL/min |
| Bake: | 6 min @ 230 °C |
| Interface Connection: | injection port |
| Transfer Line Tubing: | Siltek/Sulfinert tubing |
| Oven | |
| Oven Temp.: | 50 °C to 92 °C at 3 °C/min to 220 °C at 20 °C/min (hold 1 min) |
| Carrier Gas | He, constant flow |
| Flow Rate: | 1 mL/min |
| Linear Velocity: | 36 cm/sec |
| Detector | MS |
| Mode: | Scan |
| Source Temp.: | 280 °C |
| Electron Energy: | EI @ 70 eV |
| Scan Range: | 35-260 amu |
| Instrument | HP6890 GC & 5973 MSD |
| Notes | catalog number 22501 Siltek/Sulfinert tubing obsolete, recommend catalog number 29234 |
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