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Pyrolysis with OPTIC  Pyrolysis Modes  MSChromSearch  FAQ  SEC Py GCMS  Publications  Automation         Pyrolysis with the OPTIC-4 injector Pyrolysis GC-MS can be done inside the OPTIC-4 injector liner. This can be done with both: Liquid samples       or Solid samples Why Pyrolysis GC-MS? Pyrolysis, coupled with GC-MS permits the analysis of samples which were previously unsuitable for analysis without lengthy extractions or derivatizations. What is Pyrolysis? Pyrolysis GC-MS is simply the breaking apart of large complex molecules into smaller, more analytically useful fragments by the application of heat. Liquid sample: The sample is injected into the injector, solvent is blown away and the OPTIC-4 is heated with a very fast ramp rate to 600°C or lower. Example for characterization of copolymers: Parameters to consider in Py-GC-MS using OPTIC-4-injector Repeatability pyrolysis:  - Large volume liquid injection  - Approx. 100 µg/ml  - Pyrolysis temp. 550ºC For PMMA, PS, PBA, PCL: RSD < 4% (n=20) Linearity pyrolysis:  - Large volume liquid injection  - 0-170 µg/ml (7 standards) For PMMA and PS: r2: >0.999 Influence MW:  - Large volume liquid injection  - 7 standards with different MW (2,000 - 1,500,000) For PMMA and PS: RSD < 4% Solid sample: The sample is placed into the liner and the liner is placed into the injector. After this the OPTIC-4 pyrolyzer is heated with a very fast ramp rate to 600°C or lower.   Pyrolysis GC-MS

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