1 A simple, rapid and reproducible fluorimetric assay for cephradine, cephalexin and cephaloglycin is described. 2 The method involves addition of formaldehyde which catalyses the formation of fluorescent derivatives. 3 The structural similarities between the side chains of these antibiotics and their identical excitation and emission spectra suggest that they may be forming similar fluorescent derivatives.
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Barbhaiya et al. (1977) studied this question.
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