Method for solving incompatibility of pyrethroid pesticide emulsion in water and water suspension agent with solvent by normal-phase liquid chromatography detection

The invention discloses a method for solving incompatibility of a pyrethroid pesticide emulsion in water and a water suspension agent with a solvent by normal-phase liquid chromatography detection, which relate to the technical filed of pesticide detection. In the detection method, a cosolvent is added, the cosolvent comprises the components of ethene diamine, salicylic acid, glycine, and a methanol aqueous solution with concentration being 70%; wherein the cosolvent has the advantages of safety, feasibility and validity, the preparation method is simple and easy to carry out, when the pyrethroid pesticide emulsion in water and the water suspending agent are detected, the usage is convenient, no influence is generated on drug stability, the pyrethroid pesticide emulsion in water and the water suspending agent are compatible with the solvent, accuracy and recovery rate can be effectively increased while detection is carried out, the detection result accords with a theoretical pre-estimated value, and the detec