remove 167 mL aliquot for Sr-90 spike with 1 mg stable Sr carrier

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Presentation transcript:

remove 167 mL aliquot for Sr-90 spike with 1 mg stable Sr carrier weigh 15 g aliquot ash digest in HNO3 / HCl / H2O2 dilute to 1000 mL remove 167 mL aliquot for Sr-90 spike with 1 mg stable Sr carrier dilute 167 mL aliquot to 1000 mL Remove 10 mL aliquot for ICP analysis pass thru cation exchange resin strip cations with HNO3, evaporate re-dissolve in 5 mL 8N HNO3 isolate Sr with Sr resin Remove 0.10 mL aliquot for ICP analysis evaporate onto planchet, count

About 25% of sample spilled in transfer step

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