Welcome to the New Restek.com! Take a tour of the new site and feel free to send us your feedback.

Your web browser will no longer be supported by Restek.com as of 30 June 2021.
To avoid any interruption in access or functionality, install a current-generation web browser now. Learn more.

GCxGC-TOFMS Contour Plot of Unfortified Berry Tea

ColumnRxi-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)
Standard/SampleBerry tea
QuEChERS internal standard mix for GC-MS analysis (cat.# 33267)
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 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 GasHe, corrected constant flow (1.4 mL/min)
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
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
InstrumentLECO Pegasus 4D GCxGC-TOFMS
NotesAll column connections were made with an SGE SilTite µ-union.