Experiment As model samples, 6 commercial vinyl acetate resins (adhesives) were used. A gas chromatography time-of-flight mass spectrometer (GC-TOFMS) was used for the measurements. Since emulsion samples including adhesives are difficult to analyze without preliminary treatment, the samples were subjected to pyrolysis. Also, a column shorter than a typical GC column was used along with a Fast GC temperature sequence to speed up the measurement process. The data acquired was examined using SpectralWorks Analyzer Pro, and 2 samples were compared by the Volcano Plot. Table 1 shows the pyrolysis fast GC/TOFMS measurement conditions.