Ethylene Propylene Diene Monomer Rubber Analysis by using Pyrolysis-GCxGC-MS
MSTips No. 273
Recently, we developed a new gas chromatography/high resolution time-of-flight mass spectrometer (GC/HR-TOFMS) system which allows using multiple ionization techniques not only electron ionization (EI) but also field ionization (FI) and photo ionization (PI).
FI is a soft ionization technique that is well suited for hydrocarbons analysis because it generates molecular ions with minimal fragmentation for all compounds, including saturated hydrocarbons. PI is an also soft ionization technique that provides high sensitivity and molecular ion information for compounds with ionization energies below the maximum practical photon energy (10.8 eV) of the deuterium lamp used in our current design.
In this study, pyrolysis(Py)/GCxGC/HR-TOFMS system was applied to investigate the pyrolysis products of Ethylene-propylene–diene rubber (EPDM).