; IA is also called immunoassay. Refers to the method of determining trace substances in a sample by immunological methods. It is more sensitive than the chemical ultra-micro method history, and can detect trace substances containing Pg in the sample. For enzymes, hormones, proteins, and other substances or elements.Types of immunoassay
There are many methods of immunoassay, such as indirect agglutination reaction, complement binding test, radioimmunoassay, pregnancy test, radial diffusion, immunoelectrophoresis, Ramon flocculent reaction, Prausnitz-reaction, passive skin allergic reaction, toxin neutralization reaction, Rocket immunoelectrophoresis.