A new method of multi-residue colloidal gold detection card for detecting lean meat powder was estiblished and could be used for quantitative detection of a large number of samples. Applicated, Be used Colloidal gold immunochromatography assay and sodium citrate reduction method were used to mark the new type lean meat powder antibody, which was then sprayed onto a glass fiber. The new type lean meat powder was coupled with OVA and goat anti-mouse Ig G on nitrocellulose membrane, and the sample pad, colloid...