Defensin Beta 131 (DEFb131) BioAssay(TM) ELISA Kit (Human)

Defensin Beta 131 (DEFb131) BioAssay(TM) ELISA Kit (Human) is a Sandwich enzyme immunoassay. The microtiter plate provided in this kit has been pre-coated with an antibody specific to Defensin Beta 131 (DEFb131). Standards or samples are then added to the appropriate microtiter plate wells with a biotin-conjugated antibody specific to Defensin Beta 131 (DEFb131). Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added, only those wells that contain Defensin Beta 131 (DEFb131), biotin-conjugated antibody and enzyme-conjugated Avidin will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450nm±10nm. The concentration of Defensin Beta 131 (DEFb131) in the samples is then determined by comparing the O.D. of the samples to the standard curve. Detection Range: 15.625-1000pg/ml, Sensitivity: <5.6pg/ml, Sample Matrix: Serum, plasma and other biological fluids. Cross Reactivity: This assay has high sensitivity and excellent specificity for detection of Defensin Beta 131 (DEFb131). No significant cross-reactivity or interference between Defensin Beta 131 (DEFb131) and analogues was observed. Stability: The stability of kit is determined by the loss rate of activity. The loss rate of this kit is less than 5% within the expiration date under appropriate storage condition. To minimize extra influence on the performance, operation procedures and lab conditions, especially room temperature, air humidity, incubator temperature should be strictly controlled. It is also strongly suggested that the whole assay is performed by the same operator from the beginning to the end. Storage and Stability: Desiccation recommended. The Standard, Detection Reagent A, Detection Reagent B and the 96-well strip plate should be stored at -20°C upon receipt. Store all other reagents at 4°C. Stable for 6 months after receipt of order.