To campare the FJ2115 liquid scintillation counter with the luminometer in the determination of SOD activity

we detected the activity of SOD with FJ 2115 liqued scintillation counter and the luminometer respectively

using the chemica-2115 had advantage of high luminous intensity (1.55×10

5

cpm)

low background (0.95%)

high sensitivity(2ng)

the coefficient of variation in class was only 6.4%

the rate of recovery was 97.8%. The conclusion is that the FJ 2115 liquid scintillation counter in the assessment of SOD activtity can be replaced of the luminometer.