Human Anti C3 (Antibody) is added to samples containing C3 (Antigen) and develops insoluble complexes. The solution increases its absorbance which is photometrically measurable at 340 nm. The amount of this increase in absorbance is directly proportional to the concentration of C3 present in the sample. The use of a calibration curve with known values makes it possible to determine the concentration of C3 in the unknown sample.

FIU_C3_TURBIDIMETRIC 5+1_ENG_REV 10-2018