2. 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

4. About 25% of sample spilled in transfer step