DRGÂ Sperm Antibody ELISA, DRG International, Inc.

Description

An enzyme immunoassay for the quantitative determination of antibodies directed against spermatozoa antigens in serum. High quality assays with reproducible and reliable results Ready-to-use reagents with internal controls Very good precision and sensitivity Short assay time and incubation steps at room temperature Simple and technician friendly tests The Sperm Antibody ELISA (Enzyme Linked ImmunoSorbent Assay) is a solid-phase sandwich enzyme-immunoassay for the quantitative determination of anti-spermatozoa antibodies in human serum. The ELISA-plate is coated with a mix of spermatozoa proteins which are recognized by anti-spermatozoa antibodies. The samples and standards are pipetted into the wells and then incubated. During this incubation anti-spermatozoa antibodies bind to the spermatozoa proteins and are thus immobilised on the plate. After washing the enzyme conjugate, consisting of anti-human globulin antibodies covalently coupled to horseradish peroxidase, is added. After removal of the unbound conjugate by washing the horseradish peroxidase oxidizes the then added substrate TMB (3,3â€TM,5,5â€TM-tetramethylbenzidine) yielding a color reaction which is stopped with 0.25 M sulphuric acid (H2SO4). The extinction is measured at a wavelength of 450 nm with a microplate reader. The use of a reference measurement with a wavelength ≥550 nm is recommended.