The colloidal gold method comprehensive pesticide residue detector is widely used for the rapid detection of organophosphorus and carbamate pesticide residues in vegetables, fruits, tea, grain, agricultural and sideline products and other foods; it can also be used in fruit and vegetable tea production bases and farmers' trade On-site testing in wholesale sales markets, rapid testing before fruit and vegetable processing in restaurants, schools, canteens, and households, etc. ​