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The influence of peptides on the analysis of amino acids by thin-layer and ion-exchange chromatography

✍ Scribed by J.G. Heathcote; B.J. Keogh; R.J. Washington

Publisher
Elsevier Science
Year
1973
Tongue
English
Weight
782 KB
Volume
78
Category
Article
ISSN
1873-3778

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✦ Synopsis

Tile dcgrce of sensitivity arid of resolution of amino acids tliat is possible on cellu1osc powder makes thin-layer chromatograpl~y an ideal system for the analysis of protein hydrolysatcs.

Its application to biological fluids 1s frequently unsatisfactory, even wllcn salts have Becky removed, owing to the prescncc of peptides. The latter may also give rise to ambiguities between amino acids and peptidcs in the ionescllangc analy& of such fluids, This paper describes llotv some of tllese difficulties can be minimised by tllc USC of both tcclmiqucs concurrently,

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An improved technique for the analysis of amino acids and related compounds on thin layers of cellulose : Part VIII. The characterization of leucyl and isoleucyl dipeptides by thin-layer and ion-exchange chromatography
✍ J.G. Heathcote; B.J. Keogh; R.J. Washington πŸ“‚ Article πŸ“… 1973 πŸ› Elsevier Science 🌐 English βš– 515 KB

In this paper, which is a continuation of previous work (Part VI), two series of dipepticles, one with leucine and the other with isoleucine as the N-terminal residue, have been examined by both ion-exchange and thin-layer chromatography. The possibility of identifying these compounds in biological