▎ 摘　　要

NOVELTY - The method involves establishing linear relationship between a standard solution and a graphite alkene quantum point. Concentration of the graphite alkene quantum point is calculated. A potassium dichromate solution is filled in a fluorescent detecting probe. Fluorescence spectrum and intensity value are measured according to the graphite alkene quantum point. The potassium dichromate solution is detected according to the linear relationship between the standard solution and the graphite alkene quantum point, where concentration of the graphite alkene quantum point is 0.l mg/mL. USE - Graphene quantum point fluorescent probe based ascorbic acid and potassium dichromate solution detecting method. ADVANTAGE - The method enables increasing concentration of an ascorbic acid solution, and ensures better sensitive detection effect, fluorescence intensity and potassium dichromate concentration effect and high coefficient value i.e. 0.994 and 0.996 of the graphite alkene quantum point, simple operation and rapid detection process, high sensitivity and selectivity property. DESCRIPTION OF DRAWING(S) - The drawing shows a graphical illustration of a graphene quantum point fluorescent probe based ascorbic acid and potassium dichromate solution detecting method.