Izvestiya of Saratov University.

Chemistry. Biology. Ecology

ISSN 1816-9775 (Print)
ISSN 2541-8971 (Online)


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Russian
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Article
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543. 25

Selective Determination of Histidine in Mixed Solutions of ?-Amino Acids

Autors: 
Chernova Rimma Kuzminichna, Saratov State University
Varygina Olga V., Saratov State University
Bereskina N. S., Saratov State University
Abstract: 

Examined the condition of the main and neutral ?-amino acids in aqueous media. Graphs of the distribution of ionized forms of histidine and alanine with varying pH. Pakistan the possibility of pH –metric selective determination of histidine in mixtures of neutral amino acid with a glass indicator electrode. The error does not exceed 7%

Reference: 

1. Kiss T., S?vag? I., Gergely A. Critical survey of the stability constants of complexes of glycine // Pure & Appl. Chem. 1991. Vol. 63, № 4. P. 597-638.

2. Berthon G. The stability constants of metal complexes of amino acids winh polar side chains // Pure & Appl. Chem. 1995. Vol. 67, № 7. P. 1117-1240.

3. S?vag? J., Kiss T., Gergely A. Critical survey of the stability constants of complexes of aliphatic amino acids // Pure & Appl. Chem. 1993. Vol. 65, № 5. P. 1029-1080.

4. Pettit L.D. Critical survey of formation constants of complexes of histidine, phenylalanine, tysosine, L-Dopa and tryptophan // Pure & Appl. Chem. 2009. Vol. 56, № 2. P. 247-292.

5. Yamauchi O., Odani A. Stability constants of metal complexes of amino acids wint charged side chainsPart I : Positively charged side chains // Pure & Appl. Chem. 1996. Vol. 68, № 2. P. 469-496.

6. Химическая энциклопедия : в 5 т. М. : Сов. энцикл., 1988. Т. 1. 623 с.