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Updated: Jun 21, 2026

Removal of Trace Elements by Cupric Oxide Nanoparticles from Uranium In Situ Recovery Bleed Water and Its Effect on Cell Viability
Published on: June 21, 2015
Cathodic adsorptive stripping voltammetric determination of trace amounts of uranium (VI) based on its complex with
Alireza Mohadesi1, Laleh Hosseinzadeh, Shahriar Abbasi
1Payame Noor University, Department of Chemistry, Kerman, Iran. mohadesi_a@yahoo.com
Abstract:
An adsorptive stripping voltammetric procedure for trace determination of uranium (U; VI) at a hanging mercury drop electrode is described. The complex of U(VI) with Chromazorul-S was adsorbed and accumulated from an ammonia buffer solution of pH 8.8, including 2.4 x 10(-5) M Chromazorul-S at the potential -0.2 V for 120 s. After that, the cathodic voltammograms were recorded by potential sweep from -0.2 to -0.9 V in the differential pulse mode. The relationship between the cathodic peak currents versus U(VI) concentrations was linear over the range of 0.7-340 ng/mL. The detection limit was 0.1 ng/mL, and the relative standard deviations (7 determinations) at 10, 100, and 300 ng/mL U(VI) were 2.1, 1.6, and 1.1%, respectively. The validity of this method was estimated by determination of spiked U(VI) in natural water and soil samples. The results were successful.
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