Uranium content in groundwater by laser fluorimetry; method validation and dose assessment

Almuqrin, Aljawharah Hamad; El-Sharkawy, Ahmed; Abdellah, W. M.

doi:10.1088/1361-6498/aad71e

Cited by 6 publications

(1 citation statement)

References 22 publications

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“…Repeated analyses and measurements of some selected samples and certified reference materials were carried out to assess the accuracy, precision and reliability of the method and data. Also, the accuracy and reliability of the radiochemical procedure were confirmed by the participation in the IAEA proficiency tests [18].…”

Section: Quality Assurancementioning

confidence: 85%

Determination of Uranium Isotopic Ratios by Alpha Spectrometry for Nuclear Materials Control Purposes

Abouzeid¹,

Kandil

Khedr

et al. 2020

Arab Journal of Nuclear Sciences and Applications

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Uranium is the most common element in the nuclear fuel cycle. Different techniques have been used for analyzing the isotopic composition of uranium. Precise determination of uranium isotopic ratios for an efficient control of nuclear material was carried out through the modification of the used chromatographic method of uranium. Alpha spectrometry was utilized to identify different types of natural, depleted and enriched samples for safeguard purposes. Uranium element was extracted from other interfering radionuclides, purified, electrodeposited on a stainless-steel disc, and measured using alpha-spectrometer, then isotopic ratios were calculated. For comparison purposes, the samples were also measured using a hyper pure germanium (HPGe) spectrometer and the uranium isotopic ratios were obtained. The results obtained by both techniques were in agreement within difference ranged from-8.7 to 12%. It was concluded that alpha spectrometric measurements of uranium isotopes preceded by efficient radiochemical separation using extraction chromatography is a fast and reliable technique for safeguard purposes.

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Section: Quality Assurancementioning

confidence: 85%

Determination of Uranium Isotopic Ratios by Alpha Spectrometry for Nuclear Materials Control Purposes

Abouzeid¹,

Kandil

Khedr

et al. 2020

Arab Journal of Nuclear Sciences and Applications

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Evaluation of Uncertainty for Determination of Trace Uranium in Biology by Laser Fluorescence Method

Wang

Dong

et al. 2023

Springer Proceedings in Physics

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Large amounts of uranium-containing radioactive waste are generated in reactor operation and in the research and manufacture of nuclear fuel elements. At present, there are various uranium enrichment and separation methods such as reduction precipitation method, ion exchange method, solvent extraction method, membrane filtration method, adsorption method, and microorganism method to treat the uranium-containing radioactive waste generated in the related processes of nuclear facilities. However, the airborne effluent or liquid effluent discharged after treatment may still contain radioactive uranium. It is well known that uranium is a radioactive heavy metal element, and its radioactive and chemical toxicity cannot be ignored. Uranium in the environment enters the human body through the food route, and its long half-life can make the human body suffer from continuous radioactive internal radiation damage. As an environmental medium, organisms are closely related to the entry of uranium into the human body through food. Therefore, it is of great significance to carry out accurate measurement of uranium content in environmental-grade biological samples around nuclear facilities, however, complete and accurate measurement results include measurement data and uncertainty. Laser fluorescence method is a method for rapid analysis of uranium content in environmental samples. It has the advantages of high sensitivity, simple sample pretreatment, and wide measurement range, which has been widely used in nuclear industry, environmental monitoring and scientific research. At present, there is a lack of relevant reports on the uncertainty of the measurement of total uranium content in environmental-grade biological samples by laser fluorescence method. It is of great significance to accurately measure the uranium content in biological samples by evaluating the uncertainty of this method. In this paper, the WGJ-III trace uranium analyzer was used to analyze the uncertainty source of total uranium in environmental-grade biological samples by laser fluorescence method. The uncertainty measurement model was established, the uncertainty components were quantified, and the expanded uncertainty of the measurement of total uranium content in environmental biological samples was calculated. The evaluation results showed that the expanded uncertainty of a 0.05 g environmental biological sample is 10.8% (k = 2) without dilution, and the dominant uncertainty component is derived from the measurement uncertainty of sample fluorescence counting.

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Using a multistandard color chart guide for digital cameras to detect total uranium in drinking water using arsenazo III: an approach

Baskaran,

Saha,

Ghugre

2023

J Radioanal Nucl Chem

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Uranium content in groundwater by laser fluorimetry; method validation and dose assessment

Cited by 6 publications

References 22 publications

Determination of Uranium Isotopic Ratios by Alpha Spectrometry for Nuclear Materials Control Purposes

Determination of Uranium Isotopic Ratios by Alpha Spectrometry for Nuclear Materials Control Purposes

Evaluation of Uncertainty for Determination of Trace Uranium in Biology by Laser Fluorescence Method

Using a multistandard color chart guide for digital cameras to detect total uranium in drinking water using arsenazo III: an approach

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