Eagle Biosciences CD48 ELISA Assay Kit is based on the quantitative sandwich enzyme immunoassay technique. Microtiter wells are pre-coated with human CD48-specific polyclonal capture antibodies. Samples and standards are pipetted into microwells and human CD48 molecules present in the sample are bound by the capture antibodies. After incubation, unbound material is removed by washing the wells. Then, horseradish peroxidase (HRP) conjugated human CD48-specific polyclonal detection antibodies bind to different epitopes of human CD48 molecules. After washing, the ready to use HRP substrate (TMB) is added to wells. The intensity of the colour produced is directly proportional to the amount of human CD48 in the sample. Colour development is then stopped by the addition of stop solution. Absorbance is measured at 450 nm. Sample Types: serum, plasma, cell culture supernatant. Range: 25 - 1600 pg/mL. Sensitivity: 3 pg/ml. Time: 3 hours ? The Eagle Biosciences CD48 ELISA Assay Kit is intended for the quantitative determination of human CD48 in serum, plasma, and cell culture supernatant. The CD48 ELISA Assay Kit is for research use only and not to be used in clinical, therapeutic or diagnostic procedures.