Enzyme linked immunosorbantassay- lab diagnosis: A review

Immunoassays are generally antigen antibody analytical methods used for quantitative or for qualitative analysis. They are most commonly used for diagnostic purposes, drug monitoring in pharmacokinetic studies and in the quality control. ELISA is the most common used immunoassay where an enzyme is linked to detect the antibodies in the blood. ELISA tests are more accurate compared to other antibodyassays as it yields quantitative results. This review article describes ELISA and its applications, types and limitations. Keywords: Immunoassay, ELISA, Antibodies.