Resonance-enhanced multiphoton ionization of aromatic polymers in supersonic beam/mass spectrometry

David A. Lustig; David M. Lubman

doi:10.1117/12.17882

1 July 1990 Resonance-enhanced multiphoton ionization of aromatic polymers in supersonic beam/mass spectrometry

David A. Lustig, David M. Lubman

Proceedings Volume 1208, Laser Photoionization and Desorption Surface Analysis Techniques; (1990) https://doi.org/10.1117/12.17882
Event: OE/LASE '90, 1990, Los Angeles, CA, United States

Abstract

A two-step laser vaporization/laser multiphoton ionization method is used to analyze and detect polymers. In this method a pulsed CO₂ laser is used to vaporize the polymer for supersonic jet entrainment and then a second (UV) laser ionizes the desorbed species. The resulting ions are analyzed in a reflection time-of-flight (TOF) mass spectrometer. The challenges here include selectively detecting an aromatic polymer in a polymer blend and studying molecular weight distributions.

Citation Download Citation

David A. Lustig and David M. Lubman "Resonance-enhanced multiphoton ionization of aromatic polymers in supersonic beam/mass spectrometry", Proc. SPIE 1208, Laser Photoionization and Desorption Surface Analysis Techniques, (1 July 1990); https://doi.org/10.1117/12.17882

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