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MOSH/MOAH Compounds on Rxi-5Sil MS and Hydroguard-Treated MXT With Allure Silica (Online LC/GC Coupling)

GC_FS0500
ColumnRxi-5Sil MS, 15 m, 0.25 mm ID, 0.25 µm (cat.# 13620)
using Hydroguard-Treated MXT Guard Column & Transfer Line 10 m, 0.53 mm ID (cat.# 70084)
Sample10 g rice extracted with 10 mL hexane, evaporated to a final volume of 0.5 mL
InjectionDirect
Oven
Oven Temp.:60 °C (hold 8 min) to 85 °C at 5 °C/min (hold 2 min) to 325 °C at 25 °C/min (hold 6.4 min)
Carrier GasHe, constant pressure (29.01 psi, 200.0 kPa)
DetectorFID
InstrumentDANI Master GC
NotesSample Preparation:
The sample for this chromatogram was fractionated using HPLC under the following conditions:
Column: Allure Silica (cat.# 9160572); Dimensions: 250 mm x 2.1 mm ID; Particle Size: 5 µm; Pore Size: 60 Å; Mobile Phase: A: Hexane, B: Dichloromethane; Gradient (%B): 0.0 min (0% @ 0.3 mL/min), 1.5 min (35% @ 0.3 mL/min), 6.2 min (35% @ 0.3 mL/min), 6.3 min (100% @ 0.5 mL/min), 15.0 min (100% @ 0.5 mL/min), 15.1 min (0% @ 0.5 mL/min), 25.0 min (0% @ 0.5 mL/min), 25.1 min (0% @ 0.3 mL/min), 30.0 min (0% @ 0.3 mL/min); Instrument: Agilent 1260 Infinity.
AcknowledgementRestek thanks Axel Semrau GmbH & Co. KG with their collaborator, DANI Instruments S.p.A., for this chromatogram.