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Updated: Apr 17, 2026

Characterization of Synthetic Polymers via Matrix Assisted Laser Desorption Ionization Time of Flight MALDI-TOF Mass Spectrometry
Published on: June 10, 2018
Surface characterization of dialyzer polymer membranes by imaging ToF-SIMS and quantitative XPS line scans
Markus Holzweber1, Andreas Lippitz1, Katharina Krueger2
1Division 6.8-Surface Analysis and Interfacial Chemistry, BAM-Federal Institute for Materials Research and Testing, Unter den Eichen 44-46, 12203 Berlin, Germany.
Abstract:
The surfaces of polymeric dialyzer membranes consisting of polysulfone and polyvinylpyrrolidone were investigated regarding the lateral distribution and quantitative surface composition using time-of-flight secondary-ion-mass-spectrometry and x-ray photoelectron spectroscopy. Knowledge of the distribution and composition on the outer surface region is of utmost importance for understanding the biocompatibility of such dialyzer membranes. Both flat membranes and hollow fiber membranes were studied.

