Sideroxylon obtusifolium herbal medicine characterization using pyrolysis GC/MS, SEM and different thermoanalytical techniques

Abstract

This study aimed to characterize by analytical techniques Sideroxylon obtusifolium herbal medicine raw material derived from the leaves in different particle sizes, using scanning electron microscopy (SEM), thermoanalytical techniques [thermogravimetry (TG) and analysis differential thermal (DTA)] and pyrolysis coupled to gas chromatography/mass spectrometry (PYR-GC/MS). The different particle surface area among the samples was differentiated by the techniques. SEM distinguished the particles by its volumetric size, DTA and TG by the thermal and kinetic parameters and the PYR-GC/MS by degradation products chromatographic identification through the pyrograms.