Changes

==Applications==

==Applications==

*As the technique requires small amounts of sample it can be conducted on 96-well microtiter plates and large numbers of samples can be tested

*As the technique requires small amounts of sample it can be conducted on 96-well microtiter plates and large numbers of samples can be tested

**RIA used in this way has been employed in the detection of the hepatitis B surface antigen in donor blood, reducing the occurrence of hepatitis infections as a result of blood transfusions

**RIA used in this way has been employed in the detection of the hepatitis B surface antigen in donor blood, reducing the occurrence of hepatitis infections as a result of blood transfusions in humans

*Measuring plasma levels of hormones and controlled substances

*Measuring plasma levels of hormones and controlled substances

*Measuring anti-DNA antibodies present in systemic lupus erythematosus (SLE)

*Measuring anti-DNA antibodies present in systemic lupus erythematosus (SLE)