作者: Mostafa M. Hamed , Ashraf El-Sayed
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摘要: An improved spectrophotometric method of determination U(VI) with 4-(2-pyridylazo) resorcinol (PAR) in a mixed micellar medium (mixed cationic and nonionic surfactants) presence EDTA/NaF as masking agent has been carried out normal derivative modes. The molar absorption coefficient ( e ) Sandell’s sensitivity S U(VI)-PAR complex at 541.0 nm are 4.33 x 10 4 L.mol -1 cm , 0.0055 μg.cm -2 respectively. proposed successfully applied to the uranium tap water, river seawater synthetic sample.