DESALTING OF AMINO ACID SOLUTIONS BY ION EXCHANGE
نویسندگان
چکیده
منابع مشابه
Amino acid determination in biological fluids by automated ion-exchange chromatography: performance of Hitachi L-8500A.
The Hitachi L-8500A is a newly available apparatus for amino acid (AA) analysis that allows automatic on-line mixing of the ninhydrin reagent. The within-run precision (human plasma pools at three different concentrations) showed CVs < 3.8% except for the lowest concentration of citrulline (4.4%), Tyr (4.5%), and alpha-aminobutyric acid (7.6%), and for the intermediate concentration of Asp (8.7...
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A procedure for the precise determination of the D and L isomers in a given sample of an amino acid has been based upon chromatographic separation of the diastereoisomeric dipeptides obtained by derivatization with an L-amino acid N-carboxyanhydride. The conditions for the preparation of dipeptides developed by Hirschmann and associates make the derivatization step simple and rapid; the couplin...
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Diafiltration is an ultrafiltration membrane technique for completely removing, replacing, or lowering the concentration of salts or solvents from solutions containing proteins, peptides, nucleic acids, and other biomolecules. The process selectively uses permeable (porous) membrane filters to separate the components of solutions and suspensions based on their molecular size. Smaller molecules ...
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Ion-exchange chromatographic analysis of peroxynitric acid (O2NOOH) was performed by combining an acidic eluate with an UV-vis detector and immersing the separation column in an ice-water bath. The decomposition behavior of peroxynitric acid in the solution was also studied using this system. The fraction for the peroxynitric acid peak was collected. Ion-exchange chromatographic analysis of thi...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1952
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)55820-8