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(a) Ion mobility spectra of a mixture of the three non-labeled pentasaccharides after 5 passes. After 5 passes, the main components of each compound (denoted by the colored boxes) are isolated in the cIM device (Scheme detailed in Figure S2) and subjected to a further 13 passes. (b) IM spectra of isolated species after 18 passes in total (5 + 13); components I and II are now resolved for each saccharide
