Very Low Density Lipoproteins (VLDL) ELISA Kit

For Samples: Cell culture fluid & body fluid & tissue homogenate Serum or blood plasma

Intended Uses: This VLDL ELISA kit is intended for laboratory research use only. The stop solution changes the color from blue to yellow and the intensity of the color is measured at 450 nm using a spectrophotometer. In order to measure the concentration of VLDL in the sample, this VLDL ELISA Kit includes a set of calibration standards. The calibration standards are assayed at the same time as the samples and allow the operator to produce a standard curve of Optical Density versus VLDL concentration. The concentration of in the samples is then determined by comparing the O.D. of the samples to the standard curve.

Principle of the Assay: The coated well immunoenzymatic assay for the quantitative measurement of VLDL utilizes a multiclonal anti-VLDL antibody and an VLDL-HRP conjugate. The assay sample and buffer are incubated together with VLDL-HRP conjugate in pre-coated plate for one hour. After the incubation period, the wells are decanted and washed five times. The wells are then incubated with a substrate for HRP enzyme. The product of the enzyme-substrate reaction forms a blue colored complex. Finally, a stop solution is added to stop the reaction, which will then turn the solution yellow. The intensity of color is measured spectrophotometrically at 450nm in a microplate reader. The intensity of the color is inversely proportional to the VLDL concentration since VLDL from samples and VLDL-HRP conjugate compete for the anti-VLDL antibody binding site. Since the number of sites is limited, as more sites are occupied by VLDL from the sample, fewer sites are left to bind VLDL-HRP conjugate. Standards of known VLDL concentrations are run concurrently with the samples being assayed and a standard curve is plotted relating the intensity of the color (Optical Density) to the concentration of VLDL. The VLDL concentration in each sample is interpolated from this standard curve.

Small volumes of VLDL elisa kit vial(s) may occasionally become entrapped in the seal of the product vial during shipment and storage. If necessary, briefly centrifuge the vial on a tabletop centrifuge to dislodge any liquid in the container`s cap. Certain products may require to ship with dry ice and additional dry ice fee may apply.

MBS733897 is a ready-to-use microwell, strip plate ELISA (enzyme-linked immunosorbent assay) Kit for analyzing the presence of the Very Low Density Lipoproteins (VLDL) ELISA Kit target analytes in biological samples. The concentration gradients of the kit standards or positive controls render a theoretical kit detection range in biological research samples containing VLDL. The ELISA analytical biochemical technique of the MBS733897 kit is based on VLDL antibody-VLDL antigen interactions (immunosorbency) and an HRP colorimetric detection system to detect VLDL antigen targets in samples. The ELISA Kit is designed to detect native, not recombinant, VLDL. Appropriate sample types may include undiluted body fluids and/or tissue homogenates, secretions. Quality control assays assessing reproducibility identified the intra-assay CV (%) and inter-assay CV(%).