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Updated: Aug 15, 2026

Characterization of Synthetic Polymers via Matrix Assisted Laser Desorption Ionization Time of Flight (MALDI-TOF) Mass Spectrometry
Published on: June 10, 2018
Solid sampling technique for direct detection of condensed tannins in bark by matrix-assisted laser
Yasuyuki Ishida1, Kuniyuki Kitagawa, Kuniyoshi Goto
1Research Division of Energy Science, EcoTopia Research Institute, Nagoya University, Chikusa-ku, Nagoya 464-8603, Japan.
Abstract:
A novel method for the direct analysis of condensed tannin components in bark was developed on the basis of matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) combined with a simple solid sampling technique. The MALDI mass spectra obtained from the wood (bark) powder sample clearly showed a series of peaks corresponding to the sodium ion adducts of condensed tannin oligomers up to around m/z 3000. The results indicate that the condensed tannins in the bark sample used in this work mostly consist of combinations of flavan-3-ol units such as profisetinidin (PF), prorobinetinidin (PR) and prodelphinidin (PD), at least up to 10-mers (m/z approximately 3000).
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MALDI-TOF Mass Spectrometry
Matrix-Assisted Laser Desorption Ionization (MALDI)

