Due to the high production and consumption of plastic worldwide, it has been drawn
great attention on microplastics(MPs) entered the environment, especially the aquatic
environment. The research scope of MPs in aqueous environment has been expanding from
investigation of their presence in oceanic water to the analysis of their source, occurrence
or fate in freshwater, as well as potential environmental or health risks. In recent years,
questions concerning very small plastic particles, nanoplastics(NPs, 1~1000 nm), have
emerged. Since the current spectroscopic analytical methods developed for microplastics have
a particle size limitation and cannot reach the submicrometer range, mass spectrometry
combined with thermal degradation appears to be a promising technique to meet these
challenges. Thermal degradation allows the conversion of macromolecules into low molecular
weight fragments, which are then separated by gas chromatography and identified by a mass
detector(GC-MS). Due to the limited sample weight and the maximum operating temperature
of the thin capillary of Pyrolysis-GC/MS, in this study we present an automated thermal
extraction desorption(TED)-GC/MS with a separation of the thermal extraction process which
is suited for the analysis of MPs and NPs in a freshwater samples.