Analysis of mixtures of small peptides |
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| Authors: | By Robert A.W. Johnstone T. Jeffery Povall Jean-Louis Pousset Christiane Charpentier Alain Lemonnier |
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| Affiliation: | 1. The Robert Robinson Laboratories, The University, Liverpool, U.K.;2. U.E.R. Hygiène et Protection de l''Homme et de son Environnement, Université Paris-Sud, France |
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| Abstract: | The identification of dipeptides in mixtures was aided by their conversion into 7-isopropyl-1-methylazulen-4-ylacetyl or 1-naphthylacetyl derivatives followed by mass spectrometry of the mixtures. Dipeptides in urine were identified more completely than was possible by gas chromatography - mass spectrometry alone. Similarly, analysis of dipeptides resulting from enzymolysis of an oligopeptide was achieved readily at high sensitivity. |
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