Abstract: A rapid detection reagent plate for biological samples and its preparation method, and a method for promoting the release of marker on a lateral flow test strip are provided. The test reagent device (100) includes an upper cover (101), a lower plate (102), and a test strip (1) assembled between the upper cover (101) and the lower plate (102). The test strip (1) includes a sample pad (2), a label binding pad (3), a test pad (4) and an absorbent pad (5) superposed on each other in sequence, the sample pad (2), the label binding pad (3), the test pad (4) and the absorbent pad (5) are all adhered to a bottom card (6), and the label binding pad (3) is treated in advance with a binding pad treatment solution which includes a saccharide, a polymer and a surfactant.

Abstract: A detection device includes a test cassette and a test strip, wherein the test strip is mounted between the upper cover and bottom plate of the test cassette, a positioning column is disposed in the test cassette, and a positioning hole is formed in the test strip. The longitudinal dimension of the positioning hole is basically the same as that of the positioning column, and the transverse dimension of the positioning hole is larger than that of the positioning column. The present invention further provides the test strip with the positioning hole, and through the mutual cooperation relationship of the positioning column in the test cassette and the positioning hole in the test strip, the success rate of mounting the test strip to the test cassette can be improved, and the scrap rate of production of the test strip can be reduced.