Hemolytic complement activity assay in microtitration plates.

Abstract

A new rapid technique is developed for the determination of complement activity in a large number of samples. Following serial dilution of complement, hemolysis is performed in the same microtiter plate. After the reaction, the degree of hemolysis in wells of the plate is determined spectrophotometrically by measurement of "absorbance" (light scattering) at 630 nm, without additional procedures. This method can find application in clinical and experimental biochemistry for the analysis of a large (up to thousands) number of samples.