2.4.5. Pyrolysis-Gas Chromatography Mass Spectrometry (Pyrolysis-GCMS)

Pyrolysis-GCMS analyses were performed using a CDS pyroprobe 5000 (platinum coil) interfaced to an Agilent Technologies 7890B GC system coupled with an Agilent Technologies 5977A MSD. The samples were placed in the center of a quartz tube. Pyrolysis was conducted at 600 ◦C for ten seconds. The samples were directed onto the column (HP-5ms Ultra Inert column, 30 m × 25 μm × 0.25 μm) by helium gas in a 20:1 split ratio. The GC oven was set with an initial temperature of 40 ◦C for 1 min prior to increasing in 10 ◦C/min intervals to 300 ◦C over a 26 min period then maintained for 20 min for a total acquisition time of 47 min.
