Method for determining residue of emamectin benzoate in aquatic product material

The invention discloses a method for determining the residue of emamectin benzoate in an aquatic product material and application. The method specifically comprises the steps that a sample is directlyground and homogenized, ethyl acetate is adopted to serve as an extraction solvent, after part of extraction liquid is concentrated to a constant volume, the extraction liquid is purified through a solid-phase extraction column, a liquid chromatogram-tandem mass spectrometer is utilized for detecting, and quantification is conducted by using an external standard method. The invention firstly provides a standard method for detecting the residue of emamectin benzoate in the aquatic product material, and fills up the technical blank of the field. The related coefficient of the regression equation reaches 0.99 or above, the testing minimum is 0.5 microgram/kg, the recycling rate at the 0.5 microgram/kg-5.0 microgram/kg fortified concentration level is 80%-120%. The relative standard deviationin a laboratory is less t