Determination of aluminium in plutonium metal by differential linear sweep oscillographic polarography.
A procedure has been developed for the polarographic determination of aluminium in plutonium. The plutonium is separated by anion-exchange in a nitrate medium, and the aluminium is determined in the eluate by use of Superchrome Garnet Y. The aluminium concentration range in the polarographed solutions is 0.020-0.800 mug ml . The average recovery of aluminium was 99.3 %, relative standard deviation 7.2%. Of 20 common impurities found in plutonium métal, only molybdenum and titanium cause significant interference; both can be removed by ion-exchange.
Plock
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Chemistry-Physics Research and Development, The Dow Chemical Company, Rocky Flats Division, Golden, Colorado, U.S.A.
Vasquez
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