www.restek.it

Zoom of Pesticide Standard by GCxGC-TOFMS Using Rxi-5Sil MS and Rtx-200

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 | Pesticide standard |
Diluent: | Acetonitrile |
Injection | |
Inj. Vol.: | 1 µL splitless (hold 1 min) |
Liner: | Gooseneck splitless (5 mm) w/deactivated wool (cat.# 22973-200.1) |
Inj. Temp.: | 250 °C |
Purge Flow: | 40 mL/min |
Oven | |
Oven Temp.: | Rxi-5Sil MS: 90 °C (hold 1 min) to 310 °C at 4 °C/min (hold 2 min) Rtx-200: 100 °C (hold 1 min) to 320 °C at 4 °C/min (hold 2 min) |
Carrier Gas | He, corrected constant flow (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: | 5 min |
Tune Type: | PFTBA |
Ionization Mode: | EI |
Acquisition Range: | 45-550 amu |
Spectral Acquisition Rate: | 100 spectra/sec |
Instrument | LECO Pegasus 4D GCxGC-TOFMS |
Notes | Rtx-200 (cat.# 45001) is a 10 m column. A 1.5 m section was cut off and used as the second dimension column. |
relativo alle ricerche nella libreria dei cromatogrammi
Consigli per la stampa! Per stampare cromatogrammi su tutta la pagina, cambiare le impostazioni di stampa nella finestra di stampa del vostro software PDF reader: 1)"adatta" o "adatta alla pagina", 2)"panorama" per cromatogrammi grandi o "ritratto" per cromatogrammi alti.