LASER MAGNETIC IMMUNOASSAY METHOD AND APPARATUS THEREFOR.

摘要

Laser magnetic immunoassay of biological specimens comprises (1) subjecting the sample to antigen-antibody reaction with a magnetically labelled reagent (e.g. labelled by Fe or Co); (2) separating with antigen antibody complex and dispersing into suspension; (3) subjecting the suspension to the field from an electromagnet supplied with low-frequency (pref. 0.5Hz) current; and (4) passing a laser beam through the suspension and observing the scattering fraction.