Estratégias analíticas de pré-concentração e determinação de urânio em amostras ambientais: uma breve revisão

Abstract

Uranium is an element that appears well distributed and in low concentrations in the environment, but their availability is often intensified by human activities. This is due to its importance in various branches of modern industries, ranging from the generation of nuclear energy, medical devices to the manufacture of fertilizers. However, being a toxic and radioactive element, attention to environmental monitoring research of this element has increased. Several methods have been developed in order to increase the uranium preconcentration factor so that it can be determined by spectrometric techniques. Thus, this paper aims to describe preconcentration methods and extraction of uranium in environmental samples. The methodology used was literature review database, through scientific articles, dissertations and theses. Through this study we observed the techniques applicable to the determination of uranium and the most favorable methods for their extraction. With a view to efficiency, simplicity, low cost and generate less impact on the environment.