Study of the acid-base properties of quercetin in aqueous solutions by color measurements

Study of the acid-base properties of quercetin in aqueous solutions by color measurements

Acid-base properties of quercetin in aqueous solutions are studied by the method chemical color measurements and dissociation constants (p K ) are determined. The p K values are assigned to corresponding functional groups of quercetin and a probable scheme of their dissociation is proposed. A diagra...

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Veröffentlicht in:Journal of analytical chemistry (New York, N.Y.) N.Y.), 2015-01, Vol.70 (1), p.55-59
Hauptverfasser: Chebotarev, A. N., Snigur, D. V.
Format: Artikel
Sprache:eng
Schlagworte:
Acid-base chemistry
Analysis
Analytical Chemistry
Bioflavonoids
Chemical properties
Chemistry
Chemistry and Materials Science
Flavones
Flavonoids
Ionization constants
Methods
Quercetin
Spectrophotometry
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Zusammenfassung:Acid-base properties of quercetin in aqueous solutions are studied by the method chemical color measurements and dissociation constants (p K ) are determined. The p K values are assigned to corresponding functional groups of quercetin and a probable scheme of their dissociation is proposed. A diagram of the distribution of ion-molecular forms of quercetin in the pH range 1–13 is built.
ISSN:1061-9348
1608-3199
DOI:10.1134/S1061934815010062