The fundamentals of applying electrospray ionization mass spectrometry to low mass poly(methyl methacrylate) polymers
Journal of the American Society for Mass Spectrometry(1995)
摘要
Electrospray ionization (ESI) is capable of ionizing many soluble polymers. The ESI spectra are complex because of overlap of the multiply charged ions of the oligomer distribution, causing current computer transform programs to fail. However, it is possible to determine the origin of the multiply charged ions, making it feasible to write a program designed to transform ESI polymer spectra. To assess the value of such a program for polymer analysis, isolated monodisperse methyl methacrylate (MMA) oligomers (25 and 50 repeat units) were used to determine molar signal response and propensity for fragmentation.
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关键词
Oligomer,PMMA,High Charge State,Field Desorption,Methyl Meth Acrylate
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