Determination of As(III) and As(V) in waters by chronopotentiometric stripping analysis
2006
Svarc-Gajic, J.V., University of Novi Sad, Novi Sad (Serbia). Faculty of Technology | Suturovic, Z.J., University of Novi Sad, Novi Sad (Serbia). Faculty of Technology | Marjanovic, N.J., University of Novi Sad, Novi Sad (Serbia). Faculty of Technology | Kravic, S.Z., University of Novi Sad, Novi Sad (Serbia). Faculty of Technology
Arsenic is a naturally occurring toxic and carcinogenic element. The degree of the toxicity depends on its chemical form and the concentration. Application of a sensitive, selective, simple and rapid method for detection and monitoring of different oxidation states of arsenic in waters is of great importance because main route of population exposure is through drinking water. In this work, chronopotentiometric stripping analysis (CSA) was used for the determination of As(III) and As(V) in tap, well, river, and rain waters from Vojvodina (Serbia). Gold film electrode on the glassy carbon support was used as the working electrode. The experimental parameters of the technique were investigated and optimized. Detection limit of the method for the electrolysis time of 600 s was 2 microgram/cubic dm of AS(III).
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