Yokoyama T, Kinoshita T. High-performance liquid chromatographic determination of proteins by post-column fluorescence derivatization with thiamine reagent.
J Chromatogr A 1990;
518:141-8. [PMID:
1701770 DOI:
10.1016/s0021-9673(01)93169-3]
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Abstract
A post-column derivatization method for the high-performance liquid chromatography of peptides and proteins giving a fluorescence intensity proportional to the number of peptide bonds is described. Peptide bonds were chlorinated with hypochlorite and the N-chlorite formed was allowed to react with thiamine to give fluorescent thiochrome. This method was applied the determination of membrane-forming proteins of microorganisms.
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