based on the immunoprecipitin turbidimetric reaction enhanced by polyethylene-glycol , the technique , simple and fast , gives precise and accurate results with following cautions : the antigen and antibody concentrations must be carefully chosen according to defined specific antiserum , and two dilutions of each serum sample must be assayed to control quite satisfactory determination and exhibit any antigen excess error .
C0003241
antibody
C0020960
antiserum