Instrument

Agilent GC 6890, MSD 5973N (Agilent Technologies, Waldbronn, Germany)

Carrier Gas

He 5.0, 1 ml/min

MSD Parameters

EI 70 eV, selected ion mode (SIM), solvent delay 6 min

Injection

split/splitless injector, 1 µl, split flow 20 ml/min @ 1 min

Liner

glass liner, baffled and deactivated (Gerstel GmbH & Co. KG, Mühlheim an der Ruhr, Germany)

Column

HT 8, 50 m, 0.22 mm inner diameter, 0.25 µm film thickness (SGE Analytical Science, Ringwood, Australia)

Oven Programme

1 min at 50˚C, with 50˚C/min to 168˚C, with 4˚C/min to 310˚C, 15 min at 310˚C

PTV

Gerstel KAS 4 (Gerstel GmbH & Co. KG, Mühlheim an der Ruhr, Germany)