Net activity of 1/3 strip in origin (Count/min) All activity of strip (Count/min) Radiochemical Purity
Azer-sphere 1 70000700 70000707.7 0.9999
Azer-sphere 2 222400 222446.6 0.9998
Azar-sphere 1 55605 56316 0.9874
Azar-sphere 2 1853 1898 0.9763
Az-sphere 1 445019 445092 0.9998
Az-sphere 2 14000035 14213742 0.9849
Table 2: Radiochemical purity of different microspheres in acetone solution.