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Spectrophotometric investigation of the Pd(II)-quercetin complex in 50% ethanol

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1998
Authors
Kuntić, Vesna
Blagojević, S.
Malešev, Dušan
Radović, Z
Bogavac, M
Article (Published version)
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Abstract
Composition and stability constant of the Pd(II)-quercetin complex were determined by suitable spectrophotometric methods and pH-metric measurements in 50% Ethanol. It was found that the pd(2+) ion and quercetin form a 1:1 complex in which Pd2+ is linked to quercetin through the carbonyl and the 3-hydroxyl group. The stability constant log beta(1) ranged from 6.05 at pH = 5.00 to 4.96 at pH = 6.50. The conditions for the spectrophotometric determination of quercetin by means of complex formation were investigated. Beer's law was obeyed up to 5.00 x 10(-5) M quercetin.
Source:
Monatshefte für Chemie Chemical Monthly, 1998, 129, 1, 41-48
Publisher:
  • Springer-Verlag Wien, Vienna

DOI: 10.1007/PL00010103

ISSN: 0026-9247

WoS: 000071623500006

Scopus: 2-s2.0-0032350109
[ Google Scholar ]
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19
URI
http://farfar.pharmacy.bg.ac.rs/handle/123456789/178
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  • Radovi istraživača / Researchers’ publications
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Pharmacy

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