THE TRANSPORT OF AMINO-ACIDS BY 18-CROWN-6 THROUGH LIQUID MEMBRANES

Authors
MUTIHAC L MUTIHAC R CONSTANTINESCU T LUCA C
Citation
L. Mutihac et al., THE TRANSPORT OF AMINO-ACIDS BY 18-CROWN-6 THROUGH LIQUID MEMBRANES, Journal of inclusion phenomena and molecular recognition in chemistry, 17(1), 1994, pp. 45-51
Citations number
11
Categorie Soggetti
Chemistry,Crystallography
Journal title
Journal of inclusion phenomena and molecular recognition in chemistry → ACNP
ISSN journal
09230750
Volume
17
Issue
1
Year of publication
1994
Pages
45 - 51
Database
ISI
SICI code
0923-0750(1994)17:1<45:TTOAB1>2.0.ZU;2-9
Abstract
The possibility of separating in cationic form some alpha-amino acids (L-Methionine, L-Leucine, L-Isoleucine, L-Valine, L-Phenylalanine, L-a lpha-Alanine and L-Cysteine) from mixtures in the presence of picrate anion has been investigated by means of active transport assisted by a pH gradient through liquid membranes. 18-Crown-6 in 1,2 dichloroethan e has been used as a selective carrier. The effect of stirring rates a t different volumes of the membrane, suggests a diffusional rate-limit ing process of the amino acid transport.