VD (Vitamin D) ELISA Kit

Reed Biotech

This ELISA kit uses the Competitive-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with VD . During the reaction, VD in the sample or standard competes with a fixed amount of VD on the solid phase supporter for sites on the Biotinylated Detection Ab specific to VD . Excess conjugate and unbound sample or standard are washed away, and Avidin-Horseradish Peroxidase (HRP) conjugate are added to each micro plate well and incubated. Then a TMB substrate solution is added to each well. The enzyme-substrate reaction is terminated by the addition of stop solution and the color turns from blue to yellow. The optical density (OD) is measured spectrophotometrically at a wavelength of 450 nm. The concentration of VD in tested samples can be calculated by comparing the OD of the samples to the standard curve.

Product Specifications

• Application: ELISA
• Reactivity: All
• Assay Principle: Competitive
• Assay Time: 1.5H
• Measurement Range: 6.25-400 ng/mL
• Sensitivity: 2.19 ng/mL
• Sample Type: Serum, Plasma and Other biological fluids