title: Immunoassay with stable polystyrene latex particles.
abstract: Three variations of a new immunoassay which used physicochemically stable latex particles (LP) are described. New features include (1) separation of free and agglutinated LP by centrifugation after the addition of sucrose, and (2) combined use of two or three types of LP. Assay results for anti-rabbit IgG (anti-RG), human chorionic gonadotrophin (HCG), C3 components and insulin indicated excellence of these methods in sensitivity, reproducibility and preservability of reagents.
mesh_terms: D000818:Animals; D000941:Antigens / Q000652:urine; D006063:Chorionic Gonadotropin; D003176:Complement C3; D005260:Female; D006041:Goats; D006801:Humans; D007118:Immunoassay; D007074:Immunoglobulin G; D007328:Insulin / Q000097:blood; D007840:Latex; D011137:Polystyrenes; D011247:Pregnancy; D011817:Rabbits
chemical_list: D000941:Antigens; D006063:Chorionic Gonadotropin; D003176:Complement C3; D007074:Immunoglobulin G; D007328:Insulin; D007840:Latex; D011137:Polystyrenes