ELISA is based on what earlier method first used to detect insulin in plasma?

Question

Quizplus · Accepted Answer

ELISA is based on the Radioimmunoassay (RIA) method, which was first used to detect insulin in plasma. RIA was developed in the 1950s and it relies on the use of radioactively labeled molecules to detect and measure the amount of a specific substance (such as insulin) in a sample. ELISA, which was developed in the 1970s, is a modification of RIA that uses enzymes instead of radioactive labels.

ELISA Is Based on What Earlier Method First Used to Detect