Pyrolysis gas chromatography mass spectrometry is an advanced chemistry technique used to break down complex materials into smaller, more manageable components for identification and analysis. Pyrolysis GC/MS is especially valuable for studying polymers, plastics, paints, and other substances that are difficult to analyze directly because of their large molecular structures. Pyrolysis involves heating a sample to very high temperatures in an oxygen-free environment, causing it to decompose into smaller molecules, or pyrolysates. Pyrolysates is a term used for products of pyrolysis. These pyrolysates are then carried by an inert gas through a gas chromatograph, where they are separated based on their chemical properties. The separated molecules are then introduced into a mass spectrometer for identification based on their mass-to-charge ratio. This process provides a detailed chemical fingerprint of the material, making pyrolysis gas chromatography mass spectrometry a powerful tool for both qualitative and quantitative analysis and highly effective for studying synthetic polymers, additives, contaminants, and degradation products, among other compounds.