Fig. 32

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Comparison of aloof EELS and FTIR in the infra-red region on anhydrous guanine crystal (a), EELS : the probe is positioned 30 nm off the guanine edge; FTIR ex situ; (b) : peaks corresponding to C=O, C-H, N-H, NH2 symmetric and NH2 antisymmetric stretches can be seen in the EELS spectrum, matching corresponding features in the FTIR spectrum (from Rez et al. [144]).
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