| Popis: |
The chromatographic behaviour of l - l,d -peptides Val-AlaP, Leu-PheP, Ala-AlaP, Phe-LeuP, Leu-PheP(O-iso-C3H7)2 and Leu-Phe on aminopropyl and sulphonyl sorbents was studied. An increase in the H3PO4 concentration in the eluent resulted in a decrease in the retention but hardly affected the selectivity of the separation of the phosphonopeptides on an aminopropyl sorbent. The retention and selectivity of the separation of the phosphonopeptides on a sulphophenyl sorbent decreased with increasing H3PO4 concentration in the eluent. The optimum conditions for the separation of the diastereoisomers were found. |
