Utilising time-lag focusing ultraviolet-matrix-assisted laser desorption/ionisation-mass spectrometry for the end group analysis of synthetic polymers

A. T. Jackson, H. T. Yates, C. I. Lindsay, Y. Didier, J. A. Segal, James Scrivens, G. Critchley, J. Brown

    Research output: Contribution to journalReview articlepeer-review

    3 Citations (Scopus)

    Abstract

    Time-lag focusing matrix-assisted laser desorption/ionisation-mass spectrometry (MALDI-MS) has been employed to analyse synthetic polymers with average molecular weights between approximately 3500 and 12500 Da. Spectra are shown that demonstrate the improvement in resolution and sensitivity when time-lag focusing is used instead of prompt extraction techniques. A resolution of almost 9000 (FWHM) was obtained, in the reflectron mode of operation, for a poly(methyl methacrylate) (PMMA) sample with a relatively narrow dispersion. The data for PMMA polymers of industrial relevance easily enables the differentiation of many end groups as a consequence of the improved signal-to-noise and good mass accuracy when time-lag focusing is employed.

    Original languageEnglish
    JournalAnalusis
    Volume26
    Issue number10
    Publication statusPublished - 1 Dec 1998

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