Specific Anion Effects on the Optical Rotation of alpha-Amino Acids
Changes in optical rotation of some a-amino acids are induced by electrolytes. Such effects on L- and D-enantiomers of a range of amino acids are explored for sodium salts with varying anion. The amino acids studied were alanine, aspartic acid, glutamic acid, glutamine, proline, threonine, and tryptophan. The anion's polarizability in solution accounts for the change in [a] only for the halides. Self-association of amino acids in solution and pH changes due to the presence of the electrolytes...[Show more]
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|Source:||Journal of Physical Chemistry B|
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