Method capable of quickly detecting paraquat in beverages

The invention belongs to the field of pesticide detection and provides a method capable of quickly detecting paraquat in beverages. The method capable of quickly detecting the paraquat in the beverages includes the steps of diluting samples of beverages such as fruit juice and vegetable juice, using gold nanoparticle sol as a substrate, and detecting the paraquat in the samples through surface-enhanced Roman spectroscopy. The method capable of quickly detecting the paraquat in the beverages has the advantages that the residual paraquat in the samples can be detected qualitatively and quantitatively quickly and effectively; the method is high in sensitivity, low in detection limit and capable of detecting the 0.1 microgram/mL paraquat effectively only within a few minutes, and can only detect the above 5 micrograms/mL paraquat in undiluted samples, so that the paraquat can be detected quickly, practically, efficiently and economically. 本发明属于农药检测领域，提供了种快速检测饮料中百草枯的方法，步骤包括：果汁、蔬菜汁等饮料的样品经过稀释处理，然后采用金纳米颗粒溶胶做基底，通过表面增强