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| ''''From John Langley'''
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| {{Sugdef|Electron Capture Dissociation
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| |Multiply charged ions are irradiated with low energy electrons. Capture of an electron leads a change in charge state with the production of the (M + nH) (n-1)+. radical cation which readily fragments. This fragmentation technique is mainly used for gas-phase peptide and protein ions to observe weakly-bound post-translational modifications (PTMs) and also providing complete amino acid sequence information, e.g. Ile/Leu are discernible by this technique.
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| ::--[[User:Kkmurray|K. Murray]] 23:02, 2 Mar 2005 (CST)
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