Study of the electrochemical properties of rutin in different inert electrolytes

Abstract

U ovom radu je opisano ispitivanje elektrokemijskih svojstava rutina (3`,4`,5,7-tetrahidroksiflavon-$3\beta-D$-rutinozida) u tri različita inertna elektrolita: KCl, NaCl i LiCl. Mjerenja su izvedena pomoću diferencijalne pulsne voltametrije. Iz voltamograma je vidljivo da struja i potencijal oksidacijskih strujnih vrhova rastu s porastom koncentracije rutina. Najbolji kalibracijski dijagram je dobiven u otopini s kalijevim kloridom kao inertnim elektrolitom, pa je za određivanje nepoznate koncentracije rutina u ekstraktu kore jabuke Zimnjare korišten taj kalibracijski dijagram. Određena koncentracija rutina u ispitivanom ekstraktu iznosi 18,7∙ $10^{-6}$ mol $dm^{-3}$.In this work, a study of electrochemical characterizations of rutin (3’,4’,5,7-tetrahydroxyflavone-$3\beta-D$-rutinoside) in three different inert electrolytes: KCl, NaCl and LiCl is described. Measurements were performed by differential pulse voltammetry. Voltammograms have shown that current and potential were increasing with the increase of rutin concentration. The best calibration diagram was obtained in solution with potassium chloride as inert electrolyte, so this calibration diagram was used for determination of rutin concentration in an apple peel extract of Zimnjara. Concentration of rutin in apple peel extract is 18,7∙$10^{-6}$ mol $dm^{-3}$