This product adopts a double-antibody sandwich method and utilizes the technical principle of immunofluorescence chromatography. During the test, the sample is dropped into the sampling hole of the detection card, and chromatography is performed under the capillary effect.
For example: cTSH in the sample combines with the fluorescently labeled cTSH antibody, diffuses to the test area, is captured by another coated cTSH antibody, and forms a complex that aggregates in the test area; the fluorescence intensity of the test area is proportional to the cTSH concentration in the sample , the immunochromatographic quantitative analyzer converts the fluorescence signal value into the concentration of cTSH in the sample according to the calibration curve; line C is the quality control line, and the reagent is proven to be effective after the fluorescence intensity reaches the effective value.
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