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Titolo:
Micellar extraction of amino acids using chiral hydrophobic selectors. A comparison with chromatographic procedures
Autore:
Hebrant, M; Burgoss, P; Assfeld, X; Joly, JP;
Indirizzi:
Univ Nancy 1, Lab Chim Phys Organ & Colloidale, CNRS,FR 1742, CNRS,UMR 7565, F-54506 Vandoeuvre Nancy, France Univ Nancy 1 Vandoeuvre Nancy France F-54506 06 Vandoeuvre Nancy, France Univ Nancy 1, Lab Chim Theor Nancy, CNRS,FR 1742, CNRS,UMR 7565, F-54506 Vandoeuvre Nancy, France Univ Nancy 1 Vandoeuvre Nancy France F-54506 06 Vandoeuvre Nancy, France Univ Nancy 1, Grp SUCRES, CNRS,FR 1742, CNRS,UMR 7565, F-54506 Vandoeuvre Nancy, France Univ Nancy 1 Vandoeuvre Nancy France F-54506 06 Vandoeuvre Nancy, France
Titolo Testata:
JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2
fascicolo: 6, , anno: 2001,
pagine: 998 - 1004
SICI:
1472-779X(2001):6<998:MEOAAU>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
PERFORMANCE LIQUID-CHROMATOGRAPHY; LIGAND-EXCHANGE CHROMATOGRAPHY; ENHANCED ULTRAFILTRATION; AQUEOUS-SOLUTIONS; COPPER(II) COMPLEXES; SOLVENT-EXTRACTION; METAL-IONS; SEPARATION; ENANTIOMERS; REMOVAL;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
50
Recensione:
Indirizzi per estratti:
Indirizzo: Hebrant, M Univ Nancy 1, Lab Chim Phys Organ & Colloidale, CNRS,FR 1742, CNRS,UMR 7565, BP 239, F-54506 Vandoeuvre Nancy, France Univ Nancy 1 BP 239 Vandoeuvre Nancy France F-54506 cy, France
Citazione:
M. Hebrant et al., "Micellar extraction of amino acids using chiral hydrophobic selectors. A comparison with chromatographic procedures", J CHEM S P2, (6), 2001, pp. 998-1004

Abstract

In this work we study the micellar extraction of two amino acids, namely tryptophan and tyrosine, using N-n-dodecyl-L-proline (1) and trans-N-n-dodecyl-4-hydroxy-L-proline (2) as hydrophobic chiral selectors with copper(II) ions. In the first part of our study the solubilities of the two selectors 1 and 2 and their ability to form micelles are examined. Quantum mechanicalcalculations are performed to access their Gibbs solvation energies in order to explain their different behaviours. Micellar extraction is then studied using both selectors solubilised in non-ionic micelles. The results obtained are discussed and comparisons made with the data reported in the literature for similar selectors deposited onto an octadecyl silylated stationary phase in chromatographic procedures or solubilised in a real biphasic system in solvent extraction experiments.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/05/20 alle ore 02:10:50