Pure Chromatography
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Dandelion Root QuEChERS Extract Cleaned with Cartridge SPE (GCxGC-TOFMS Contour Plot)
GC_FF1189
| Column | Rxi-5Sil MS 30 m, 0.25 mm ID, 0.25 µm (cat.# 13623) |
| Rtx-200 1.5 m, 0.18 mm ID, 0.20 µm (cat.# 45001) | |
| Sample | |
| Diluent: | Toluene |
| Injection | |
| Inj. Vol.: | 1 µL splitless (hold 1 min) |
| Liner: | Gooseneck Splitless (4mm) w/Wool (cat.# 22405) |
| Inj. Temp.: | 250 °C |
| Purge Flow: | 40 mL/min |
| Oven | |
| Oven Temp.: | Rxi-5Sil MS: 80 °C (hold 1 min) to 310 °C at 4 °C/min (hold 1.5 min) Rtx-200: 90 °C (hold 1 min) to 320 °C at 4 °C/min (hold 1.5 min) |
| Carrier Gas | He, constant flow |
| Flow Rate: | 1.8 mL/min |
| Modulation | |
| Modulator Temp. Offset: | 25 °C |
| Second Dimension Separation Time: | 4 sec |
| Hot Pulse Time: | 1.2 sec |
| Cool Time between Stages: | 0.8 sec |
| Detector | TOFMS |
| Transfer Line Temp.: | 290 °C |
| Analyzer Type: | TOF |
| Source Temp.: | 225 °C |
| Electron Energy: | 70 eV |
| Mass Defect: | -20 mu/100 u |
| Solvent Delay Time: | 4 min |
| Ionization Mode: | EI |
| Acquisition Range: | 45 to 550 amu |
| Spectral Acquisition Rate: | 100 spectra/sec |
| Instrument | LECO Pegasus 4D GCxGC-TOFMS |
| Notes | See application note GNAN1338 for extraction and cleanup details. A 1.5 m length of the Rtx-200 column was trimmed from a 10 m column. Columns were connected with a Universal Press-Tight Connector (cat.# 20429). |
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Restek Corporation, U.S., 110 Benner Circle, Bellefonte, PA 16823
Copyright © 2021 Restek Corporation. All rights reserved.
A Company of Owners
Cookies allow for a variety of features that make your visit to Restek more enjoyable. By using this website, you agree to the use of cookies in accordance with our guidelines. For more information, see our privacy policy.