Developed Method for Low Concentration Determination of Uranium

Eurasian Journal of Analytical Chemistry

Ashraf El-Sayed¹  Mostafa M. Hamed¹ 

关键词: Uranium;    UV-Vis;    Derivatives;    Micells;   

DOI  :  10.12973/ejac.2009.00048a

学科分类：分析化学

来源: Eurasian Journal of Analytical Chemistry

【 摘 要 】

An improved spectrophotometric method of determination of U(VI) with 4-(2-pyridylazo) resorcinol (PAR) in a mixed micellar medium (mixed cationic and nonionic surfactants) in presence of EDTA/NaF as masking agent has been carried out in normal and derivative modes. The molar absorption coefficient (ε) and Sandell’s sensitivity (S) of U(VI)-PAR complex at 541.0 nm are 4.33 x 104 L.mol-1 cm-1 , 0.0055 μg.cm-2, respectively. The proposed method has been successfully applied to the determination of uranium in tap water, river water, seawater and synthetic sample.

【 授权许可】

Unknown