▎ 摘　　要

NOVELTY - Anthraquinone-modified graphene quantum dot is new. USE - Anthraquinone-modified graphene quantum dot used for preparing lysine fluorescence detection reagent (claimed). ADVANTAGE - The anthraquinone-modified graphene quantum dot has good luminescent properties, water solubility and high selectivity, and can be prepared in a simple and eco-friendly manner under mild reaction conditions, and provides lysine detection without affecting by other conventional coexisting biomolecules such as alanine, glycine, arginine, methionine, glucose and glucosamine. DETAILED DESCRIPTION - Anthraquinone-modified graphene quantum dot of general formula (I) is new. An INDEPENDENT CLAIM is included for a method for preparing cerium-modified graphene quantum dot. DESCRIPTION OF DRAWING(S) - The drawing shows a graphical representation depicting fluorescence intensity response of the anthraquinone-modified graphene quantum dot to different concentrations of lysine.