Patent ID: 8569075

Claim:
A method for radioimmunoassay for measuring concentrations of a target material in samples including the steps of: providing a multi-welled micro-plate 21 that can be dismantled; executing radioimmunoassay including the steps of: filling an antibody 31 , specific for the target material, in the wells 22 of the multi-welled micro-plate 21 so that the antibody 31 is coated on an internal side of each of the wells 22 of the multi-welled micro-plate 21 ; washing away an excessive portion of the antibody 31 from the wells 22 ; coating an blocking reagent 32 on a portion of the surface of the multi-welled micro-plate 21 that is not covered by the antibody 31 ; removing an excessive portion of the blocking reagent 32 ; filling samples 33 of a target material in the wells 22 ; oscillating the multi-welled micro-plate 21 for a predetermined period of time; washing away an excessive portion of the samples 33 is by washing buffer for several times; labeling an antibody 34 specific for the target material with iodine-125 and filling it in the wells 22 ; oscillating the multi-welled micro-plate 21 for another predetermined period of time; washing away an excessive portion of the antibody 34 labeled with the iodine-125 by washing buffer for several times; and inverting and locating the multi-welled micro-plate 21 on a tower of tissue paper so that all liquid leaves the wells 22 ; and executing a gamma counting including the steps of: dismantling the multi-welled micro-plate 21 into separate wells 22 ; casting each of the wells 22 in a test tube 23 ; and providing a gamma counter 24 is used for the gamma counting in the test tubes 23 , thus measuring the concentrations of the target material in the samples 33 .