TITLE

Multisyringe flow injection spectrophotometric determination of uranium in water samples

AUTHOR(S)
Mar, Jorge L. Guzmán; López Martínez, Leticia; de Alba, Pedro L. López; Soto, Nancy Ornelas; Martín, Víctor Cerdà
PUB. DATE
September 2009
SOURCE
Journal of Radioanalytical & Nuclear Chemistry;Sep2009, Vol. 281 Issue 3, p433
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A multisyringe flow injection analysis method for the determination of uranium in water samples was developed. The methodology was based on the complexation reaction of uranium with arsenazo (III) at pH 2.0. Uranium concentrations were spectrophotometrically detected at 649 nm using a light emitting diode. Under the optimized conditions, a linear dynamic range from 0.1 to 4.0 μg mL−1, a 3σ detection limit of 0.04 μg mL−1, and a 10σ quantification limit of 0.10 μg mL−1 were obtained. The reproducibility (%) at 0.5, 2.5, and 4.0 μg mL−1 was 2.5, 0.9, and 0.6%, respectively ( n = 10). The interference effect of some ions was tested. The proposed method was successfully applied to the determination of uranium in water samples.
ACCESSION #
44513651

 

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