• Article

Material characterization using a tandem micro-reactor - GC-MS

Citation

Freeman, R. R., Watanabe, A., Watanabe, C., Teramae, N., & Wang, K. (2015). Material characterization using a tandem micro-reactor - GC-MS. Journal of Analytical and Applied Pyrolysis, 111, 41-46. DOI: 10.1016/j.jaap.2014.12.014

Abstract

This work illustrates how the Tandem micro-Reactor (TMR), when interfaced to a GC-MS, facilitates the rapid characterization of virtually any material: gases, liquids and solids. A TMR has two independently controlled micro-reactors in series. Each micro-reactor has three heating modes: isothermal (up to 900 degrees C), multi-linear (e.g., 100-400 degrees C at 20 degrees C/min) and distinct temperature steps (e.g., 100 degrees C, 200 degrees C, etc.). The TMR can be used for both Evolved Gas Analysis (EGA) and detailed component analysis. Three examples illustrate how the TMR-GC-MS can be configured to differentiate or identify virtually any material. (1) Lignin, oak, bagasse and cellulose are easily differentiated using EGA-MS - each material is analyzed directly by simply weighing the sample (