In the most simple form of an elisa, antigens from the sample to be tested are attached to a surface. Learn about the different methods for performing an elisa assay for protein quantitation, including assay design strategies and reagents. Elisa is a laboratory technique that detects certain antibodies, antigens and other substances in your blood, pee or other bodily fluid Laboratory scientists use this technique for several medical tests — from diagnosing infections to confirming pregnancy. This guide explains what an elisa (short for enzyme linked immunosorbent assay) is, the procedures involved, types of elisa, detection options and results
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