Abstract
The effect of the variation of the cation, on the matrix-assisted laser desorption/ionisation collision induced dissociation (MALDI-CID) spectra obtained, has been studied in a hybrid sector-orthogonal acceleration-time of flight tandem mass spectrometer for some synthetic oligomeric systems. Oligomers of poly(methyl methacrylate) and poly(styrene) in the molecular weight range of approximately 1000-3000 u were analysed. They were ionised by attachment of various alkali metal and copper and silver ions, respectively. The MALDI-CID spectra are shown to vary with different cations more from precursor ions of lower than those of higher mass-to-charge ratio.
Original language | English |
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Pages (from-to) | 363-375 |
Number of pages | 13 |
Journal | International Journal of Mass Spectrometry and Ion Processes |
Volume | 165-166 |
Publication status | Published - 1 Dec 1997 |