Enantiomeric resolution of DNS-amino acids by ligand exchange chromatography: Comparison of different chiral amino acid amides as additives to the mobile phase
β Scribed by A. M. Girelli; M. Sinibaldi
- Publisher
- John Wiley and Sons
- Year
- 1990
- Tongue
- English
- Weight
- 315 KB
- Volume
- 2
- Category
- Article
- ISSN
- 0899-0042
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β¦ Synopsis
A study developing enantiomeric separations by metal chelate additives to the mobile phase in reversed-phase liquid chromatography is reported. In particular the use of Cu(I1) complexes of L-prolinamide (L-ProNH,) and Lvalinamide (L-ValNH,) is examined and discussed. Interestingly, for a series of DNS-amino acids these selectors show higher enantioselectivity than that obtained with the corresponding nonderivatized amino acid-Cu(I1) complexes.
π SIMILAR VOLUMES
## Abstract Enantiomeric resolution of dansyl amino acids by microcolumn liquid chromatography with Ξ³βcyclodextrin as a mobile phase additive has been investigated. The separation factor for the enantiomers increased with increasing Ξ³βcyclodextrin concentration as well as with decreasing acetonitri