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Updated: Jun 1, 2026

Characterization of Synthetic Polymers via Matrix Assisted Laser Desorption Ionization Time of Flight (MALDI-TOF) Mass Spectrometry
Published on: June 10, 2018
Direct current glow discharge mass spectrometry for elemental characterization of polymers
1Department of Chemistry, University of Antwerp (UIA), Universiteitsplein 1, B-2610 Antwerpen, Belgium.
Abstract:
A direct current glow discharge mass spectrometer has been used for a novel application, the sputtering and subsequent analysis of polymers. This was made possible by the application of a secondary cathode, a tantalum diaphragm placed in front of the nonconducting sample. Different types of polymers were measured (polytetrafluoroethylene, polycarbonate, and poly(vinyl chloride)). Important to note is that the mass spectra obtained are predominantly characterized as atomic, a major difference from the radio frequency GDMS spectra of polymers reported earlier. This facilitates quantitative elemental analysis for several reasons.
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