The spectrophotometric salicylate method for the determination of uranium is solutions was used extensively at the Clinton Laboratories (former name of Oak Ridge National laboratory) in 1944 and 1945. Although it has been largely replaced by other methods, it is still useful as a rapid method of analysis when the interferences are known.nWhen sodium salicylate is added to uranium in a solution that is buffered to a PH of about 8 with an ammonium acetate-ammonium hydroxide buffer, a yellow color is produced.
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