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Electroanalytical characterization of Cu(II)-rutin complex

The Cu (II)-rutin complex was prepared by mixing stoichiometric amounts of rutin (1 mmol) and CuCl2•2H2O (1.5 mmol) in methanol and refluxed for 5 h. Pale yellow precipitate was formed immediately when the cooled mixture was poured into water. The formed complex was left to stand overnight and after that was collected by vacuum filtration, washed 3 times with 1:3 ethanol/water mixture, several times with water and dried under vacuum. The obtained complex was characterized by UV/Vis spectroscopy and direct potenctiometry. Its sensing properties were tested. Response characteristics of the mentioned Cu (II)-rutin sensor were investigated regarding inorganic cations. Redox properties were also investigated as well as electrochemical properties of rutin.

rutin; copper; metal complexation; sensor

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