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<strong>Sr</strong>-<strong>90</strong> <strong>Soil</strong> <strong>Method</strong> (50 gram )<br />
Sample <strong>Sr</strong> carrier<br />
<strong>90</strong><br />
<strong>Sr</strong> Reference Value<br />
<strong>90</strong><br />
<strong>Sr</strong> Reference Value<br />
<strong>90</strong><br />
<strong>Sr</strong> Measured Value Difference<br />
ID (%) (pCi g -1 ) (mBq g -1 ) (mBq g -1 ) (%)<br />
1 95.9 0.160 5.92 6.05 2.20<br />
2 98.6 0.160 5.92 6.02 1.69<br />
3 94.6 0.160 5.92 5.82 -1.69<br />
4 91.8 0.160 5.92 6.32 6.76<br />
5 93.2 0.160 5.92 5.96 0.68<br />
6 92.5 0.160 5.92 5.60 -5.41<br />
7 91.2 0.160 5.92 5.85 -1.18<br />
Avg 94.0 5.95 0.43<br />
SD 2.6 0.22<br />
% RSD 2.8 3.77<br />
Measured values corrected for 1.35 mBq <strong>90</strong> <strong>Sr</strong>/g found in unspiked soil<br />
MDC = 0.011 pCi/g (0.41 mBq/g)<br />
<strong>90</strong> minute count<br />
16
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