Separation and isolation of trace impurities in l-tryptophan by high-performance liquid chromatography
β Scribed by Mary W. Trucksess
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 114 KB
- Volume
- 630
- Category
- Article
- ISSN
- 1873-3778
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Tryptophan metabolites with an indole ring are enriched by adsorption either as an ion pair with a trichloroacetic acid anion or as its undissociated form on porous polystyrene polymer (TSK 2000 S) from strongly acidic piasma deproteinized by trichloroacetic acid, and after washing with water, they