| abstract |
A fluorescent quantitative rapid detection test strip for heavy metal lead ions and a preparation method and application thereof belong to the technical field of food detection. The two ends of the PVC bottom plate of the invention are respectively provided with a sample pad and a water-absorbing pad; a nitrocellulose membrane detection layer is arranged in the middle of the PVC bottom plate, and a fluorescent microsphere marker pad is arranged between the nitrocellulose membrane detection layer and the sample pad; the One end of the fluorescent microsphere labeling pad is superimposed with the sample pad, and the other end is superimposed with the nitrocellulose membrane detection layer; the nitrocellulose membrane detection layer is sequentially provided with a quality control line and a detection line. The detection speed of the invention is fast, the whole process only needs 5 minutes, and the rapid detection of large batches of samples can be implemented; the sensitivity of the invention is high, and the detection limit of the rice sample is 5 ng/mL; Simple, without professional training, easy to promote, no need for instruments, suitable for on-site testing. |