ELECTROCHEMICAL DETERMINATION OF RESORCINOL IN WATER SAMPLES USING Fe (III) DOPED ZEOLITE-GRAPHITE COMPOSITE MODIFIED GLASSY CARBON ELECTRODE

Mulie, Begashaw

dc.contributor.author	Mulie, Begashaw
dc.date.accessioned	2018-11-27T08:33:32Z
dc.date.available	2018-11-27T08:33:32Z
dc.date.issued	2018-11-27
dc.identifier.uri	http://hdl.handle.net/123456789/9218
dc.description.abstract	Cyclic voltammetry (CV) and square wave voltammetry (SWV) were used for characterizing and determining resorcinol concentration in water samples from selected areas of Bahir Dar city, Ethiopia. While the electrochemical behavior of resorcinol at FZ-G/GCE, effects of scan rate and buffer pH on peak current and peak potential were studied using cyclic voltammetry, square wave voltammetry was used for quantitative determination of resorcinol in water samples from different origin. Resorcinol showed irreversible oxidation at both the unmodified and modified electrodes with an enhanced peak current and reduced overpotential at the modified electrode. The oxidative peak current of RS at the modified electrode increased with pH from 6 to 8 and then decreased at pHs beyond 8 and hence pH 8 was taken as the optimum value. Oxidative peak current of RS showed linear dependence on the concentration of RS in a wide range from 10-600 µM with a correlation coefficient, LoD, and LoQ of 0.99843, 0.81 µM, and 2.7 µM, respectively. Recovery results in the range 93.9-100.4% of spiked standard resorcinol in water samples even in the presence of potential interferents validated the applicability of the developed method for determination of RS in water samples. Key words: Resorcinol, Zeolite NaY (zeolite), cyclic voltammetry, square wave voltammetry and water.	en_US
dc.language.iso	en	en_US
dc.subject	CHEMISTRY	en_US
dc.title	ELECTROCHEMICAL DETERMINATION OF RESORCINOL IN WATER SAMPLES USING Fe (III) DOPED ZEOLITE-GRAPHITE COMPOSITE MODIFIED GLASSY CARBON ELECTRODE	en_US
dc.type	Thesis	en_US