Abstract
A method for the determination of dissolved tri butyl phosphate (TBP) in PUREX process aqueous streams by atomic emission spectrometry with inductively coupled plasma has been evolved. The phosphorous emission lines of 213.618 and 214.914 nm have been chosen and the possibility of determining dissolved TBP in these lines has been explored. Since presence of uranium which is inevitable in the process solution, and also present in macro level, the spectral and matrix interference of uranium on the determination of phosphorous has been investigated. The precision of the method was characterized by RSD of <5 % with a detection limit of 0.06 and 0.24 mg/L for phosphorous which in turn corresponds to detection limit of 0.5 and 2 mg/L for dissolved TBP in lines 213.618 and 214.914 nm respectively.
Published Version
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