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Introduct i on
Determination of radiostrontium in animal bone ash
Determination of radiostrontium in human bone ash
14 other sections not shown
30 minutes 40 ml centrifuge 6M nitric acid acid see Note add 1 ml add 90 ml ammonium acetate ammonium carbonate ammonium hydroxide barium carrier solution boiling water bath bone ash calcium content Calculate Centri Centrifuge and reject chemical yield cm Whatman Cool with stirring counter efficiency counting period determination of calcium Determination of radiostrontium deviation of counting Dissolve the residue filter paper filtrate fuge fuming nitric acid g of ash Gelva hydrochloric acid hydrofluoric acid method methyl red ml centrifuge bottle ml centrifuge tube ml of 6M ml of acid ml of barium ml of distilled ml of fuming ml of strontium ml of water natural strontium oxalic acid pc Sr/g perchloric acid reject the supernate remove the supernate sample weights sodium carbonate sodium chromate sodium hydroxide soil standard deviation stirring for 30 strontium carbonate strontium carrier solution strontium source strontium yield strontium-90 Weigh yield per cent yttrium carrier yttrium count