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Histamine ELISA Bulk Pack (Stool, 20 Plates)

Item #: KR8213.20 Categories: ,
Method: ELISA
Sample Type (Matrix): Stool
Sample Volume: 15 mg
Species: Human
Incubation time: 1h 42m
Standard Range: 1 - 120 ng/ml
Size: 20 x 96 wells
Regulatory Status: For research use only in the U.S.
Kit Manual: Download

The Histamine ELISA Bulk Pack (Stool, 20 Plates) is intended for the quantitative determination of histamine in stool.

For research use only. Not for use in diagnostic procedures.

For Laboratory Professional Use Only.

Please inquire about pricing, as each Histamine ELISA Bulk Pack is customized to meet the needs of your lab.

Developed by Immundiagnostik AG.

Test Principle of the Histamine ELISA

The Histamine ELISA is designed for the quantitative determination of histamine in stool. This assay is based on the method of competitive enzyme-linked immunoassays.

The sample preparation includes the addition of a derivatization reagent for histamine derivatization. Afterward, the treated samples and a peroxidase-conjugated polyclonal histamine antibody are incubated in wells of a microtiter plate coated with histamine derivative (tracer).

During the incubation period, the target histamine in the sample competes with the tracer, immobilized on the wall of the microtiter wells, to bind the polyclonal antibodies.

After washing away the unbound components, tetramethylbenzidine (TMB) is added as a peroxidase substrate. Finally, the enzymatic reaction is terminated by an acidic stop solution. The color changes from blue to yellow, and the absorbance is measured in a photometer at 450 nm. The intensity of the yellow color is inversely proportional to the histamine concentration in the sample; this means high histamine concentration in the sample reduces the concentration of tracer-bound antibody and lowers the photometric signal.

A dose-response curve of the absorbance unit (optical density, OD at 450 nm) vs. concentration is generated using the values obtained from the standards. The presence of histamine in the samples is determined directly from this curve.

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