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. Author manuscript; available in PMC: 2015 May 2.
Published in final edited form as: J Chromatogr A. 2014 Mar 16;1340:109–114. doi: 10.1016/j.chroma.2014.03.033

Table 1.

Activities of sample from LANL.

Nuclide Literature28 t1/2 (days) Measured Initial Activity at LANL on 07/24/201122 Measured Activity at MURR on 08/23/2011
22Na 950.5 Not determined 19.34 μCi/mL
71As 2.72 0.19 ± 0.01 Ci Decayed
72As 1.08 Not determined 2.8 μCi/mL
73As 80.3 a Not determined 62.51 μCi/mL
74As 17.77 0.046 ±0.001 Ci 56.26 μCi/mL
72Se 8.4 0.03 ± 0.01 Ci b Not determined
75Se 119.78 0.050 ± 0.002 Ci 35.24 μCi/mL
76Br 0.68 8.1 ± 0.7 Ci c Not present
77Br 2.38 4.2 ± 0.6 Ci c Not present
82Br 1.47 0.27 ± 0.06 Ci c Not present
a

Accurate measurement of the low energy (56 keV) was impossible with the high activities present.

b

Accurate measurement of the low activity, low energy (46 keV) gamma was not possible.

c

Br isotopes had been removed prior to our receipt.