Patent ID: 7935539

Claim:
A system for determining the presence of an analyte in a sample by agglutination of particles consisting essentially of: (a) a first reagent comprising of a non-specific antibody to Ig antibodies conjugated to latex particles; (b) a second reagent comprising of an antibody specific to said analyte, which reagent is capable of causing agglutination of the latex particles of (a) when said first and second reagents are combined, said non-specific antibody binding at the Fc portion of said antibody specific to said analyte; (c) a means for measuring the amount of light at a predetermined wavelength absorbed by agglutination of said latex particles of (a) when said first and second reagents are combined with said sample, thereby determining the presence of an analyte in said sample and permitting correlation of the degree of said agglutination in inverse proportion to the amount of said analyte in said sample.