Tetracycline detection material, preparation method thereof and tetracycline detection method

The invention discloses a tetracycline detection material, a preparation method thereof and a tetracycline detection method, and solves the technical problems of low fluorescence change degree and poor specificity and anti-interference performance of CuNCs in the prior art. The tetracycline detection material comprises a copper nanocluster and Eu < 3 + > attached to the copper nanocluster; the copper nanocluster is prepared by taking L-histidine as a template. The preparation method comprises the following steps: (1) obtaining a first mixed solution containing Cu < 2 + >, L-histidine and ascorbic acid; (2) carrying out heat treatment on the first mixed solution; (3) carrying out dialysis treatment on the heat treatment product to obtain a copper nanocluster dispersion liquid; and (4) mixing the copper nanocluster dispersion liquid with the Eu < 3 + > solution to obtain the detection material. The detection method of tetracycline adopts the detection material in the first aspect or the detection material prepa