The invention belongs to the technical field of aluminum content detection, and particularly relates to a synthesis method of a
Schiff base ligand and application of the
Schiff base ligand to detection of the content of Al < 3 + > in
jellyfish. The synthesis method comprises the following steps: S1a, respectively weighing 3-amino-5-sulfydryl-1, 2, 4-
triazole and 2-hydroxy-1-naphthaldehyde in a
molar ratio of 1: 1 by using an
analytical balance, and putting the 3-amino-5-sulfydryl-1, 2, 4-
triazole and 2-hydroxy-1-naphthaldehyde into a round-bottom flask; s1b, stirring bars, ethyl
alcohol and 0.03 mL of glacial
acetic acid are continuously added into the round-bottom flask, and a
mixed solution is obtained; s1c, reacting the
mixed solution for 8-10 hours by utilizing a heating
reflux method, and performing rotary
evaporation to remove a
solvent, so as to obtain a
reaction product; s1d, cleaning the
reaction product with
ethanol, and
drying to obtain a
Schiff base ligand; based on the obvious
fluorescence enhancement effect of Al < 3 + > ions on the Schiff base ligand, a method for detecting the content of Al < 3 + > in a
jellyfish product by using the Schiff base ligand as a fluorescent probe is provided, the detection result shows that the accuracy of the detection method is relatively high, and an important experimental value is provided for the field of food environment.