Multisyringe flow injection spectrophotometric determination of uranium in water samples
| Autor: | Víctor Cerdà Martín, Leticia López Martínez, Nancy E. Ornelas Soto, Pedro Luis López de Alba, Jorge L. Guzmán Mar |
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| Rok vydání: | 2009 |
| Předmět: |
Flow injection analysis
Detection limit Reproducibility Chromatography medicine.diagnostic_test Chemistry Health Toxicology and Mutagenesis Public Health Environmental and Occupational Health Analytical chemistry chemistry.chemical_element Uranium Pollution Analytical Chemistry Nuclear Energy and Engineering Spectrophotometry medicine Radiology Nuclear Medicine and imaging Spectroscopy |
| Zdroj: | Journal of Radioanalytical and Nuclear Chemistry. 281:433-439 |
| ISSN: | 1588-2780 0236-5731 |
| DOI: | 10.1007/s10967-009-0032-8 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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