## Abstract A microchromatographic procedure for highly sensitive analysis of proteins has been developed by using short capillary columns with reverse‐phase, ion‐exchange, and hydrophobic interaction sorbents. The high analytical mass sensitivity on the level of several nanograms was attained by t
High performance liquid chromatographic resolution of the optical isomers of D,L-tryptophane, D,L-5-hydroxytryptophan and D,L-dopa on cellulose columns
✍ Scribed by Gübitz, G. ;Jellenz, W. ;Schönleber, D.
- Publisher
- John Wiley and Sons
- Year
- 1980
- Tongue
- English
- Weight
- 152 KB
- Volume
- 3
- Category
- Article
- ISSN
- 0935-6304
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✦ Synopsis
Abstract
The application of HPLC for the purpose of separation of some amino acid racemates with aromatic substituents is described.
Using simple untreated cellulose with an average particle size of 7 μm as stationary phase, complete resolution of D,L‐tryptophane and D,L‐5‐hydroxytryptophane can be obtained. D,L‐3,4‐dihydroxyphenylalanine is resolved partially.
The α‐value and resolution for D,L‐tryptophane was found to be 1.5.
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