Pure Chromatography
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GCxGC-TOFMS Contour Plot Showing Potential Isobaric Interference with Acephate (m/z 136) in 1D Analysis
GC_FS0504
| Column | Rxi-5ms 30 m, 0.25 mm ID, 0.25 µm (cat.# 13423) with Rxi guard column 1.0 m, 0.25 mm ID (cat.# 10029) |
| Rtx-200 1.0 m, 0.25 mm ID, 0.25 µm (cat.# 15124) | |
| Sample | 505 Organohalide pesticide mix (cat.# 32024) |
| QuEChERS performance standards kit (cat.# 31152) | |
| QuEChERS internal standard mix for GC-MS analysis (cat.# 33267) | |
| Diluent: | Acetonitrile |
| Injection | |
| Inj. Vol.: | 1.0 µL splitless (hold 1.0 min) |
| Liner: | Premium 4 mm single taper (cat.# 23302.1) |
| Inj. Temp.: | 250 °C |
| Purge Flow: | 40 mL/min |
| Oven | |
| Oven Temp.: | Rxi-5ms: 70 °C (hold 1.0 min) to 330 °C at 8.0 °C/min (hold 6.5 min) Rtx-200: 75 °C (hold 1.0 min) to 335 °C at 8.0 °C/min (hold 6.5 min) |
| Carrier Gas | He, corrected constant flow (1.4 mL/min) |
| Modulation | |
| Modulator Temp. Offset: | 20 °C |
| Second Dimension Separation Time: | 2.00 sec |
| Hot Pulse Time: | 0.60 sec |
| Cool Time between Stages: | 0.40 sec |
| Detector | MS |
| Mode: | |
| Transfer Line Temp.: | 320 °C |
| Analyzer Type: | TOF |
| Source Temp.: | 225 °C |
| Electron Energy: | 70 eV |
| Mass Defect: | -20 mu/100 u |
| Ionization Mode: | EI |
| Acquisition Range: | 45-550 amu |
| Spectral Acquisition Rate: | 100 spectra/sec |
| Instrument | LECO Pegasus 4D GCxGC-TOFMS |
| Notes | All column connections were made with an SGE SilTite µ-union. |
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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.