▎ 摘　　要

NOVELTY - The method involves weighing specific gram indigo red p-phenylenediamine reducing double Schiff base. A nano graphene oxide is dissolved into ultra-pure water in a volumetric flask. Nano graphene oxide suspension dilution preparation is carried out into nano graphene oxide suspension. Tube plug is added in the nano graphene oxide suspension to prepare a mixture. The mixture is added with citric yellow solution in a uniform manner. Proper amount of the mixture is taken to cuvette under room temperature condition. USE - Method for detecting beverage sample lemon yellow content. ADVANTAGE - The method enables increasing detection accuracy of the beverage sample lemon yellow content. DESCRIPTION OF DRAWING(S) - The drawing shows a graph illustrating a method for detecting beverage sample lemon yellow content. '(Drawing includes non-English language text)'