Matrix assisted laser desorption/ionization (MALDI) has been used extensively to generate ions for the analysis of polymers in many mass spectromters including the Fourier transform mass spectrometer, and a variety of techniques exist for getting these ions into the trapped ion cell.


O'Connor, P. B., Heeren, R., Duursma, M. C., van Rooij, G. J., van der Hage, E. R. E., & Boon, J. J. (1996). Analysis of polymers using FTMS. In Proceedings of the 44th ASMS Conference on Mass Spectrometry and Allied Topics, May 12-16, 1996, Portland, Oregon.