precipitate was filtered out, dissolved and washed
through the filter paper with dilute acid, reprecipi-
tated from a smaller volume, centrifuged, plated and
counted.
(3)
Calcium and strontium were precipitated from the
alkaline flltrate by addition of saturated ammonium
oxalate solution to the "hot" solution.
The preci-
pitate was filtered out, dissolved and washed through
the paper with acid, reprecipitated from a smaller
volume, centrifuged, plated, and counted.
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