▎ 摘　　要

NOVELTY - Graphene oxide analysis involves adding graphene oxide in ultrapure water to prepare oxidized graphene aqueous solution, and then treating ultrasonically with an ultrasonic bath for 2 hours. The prepared graphene oxide solution is measured by using matrix-assisted laser desorption-ionization mass spectrometer, where the presence of oxidized graphene is determined qualitatively. The aqueous solution of oxidized graphene is prepared by according to measurement of the graphene oxide. USE - Method for analyzing graphene oxide for determining oxidized graphene in aqueous solution (claimed). ADVANTAGE - The method analyzes graphene oxide in a simple, cost-effective and eco-friendly manner. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic mass spectrum image of the ultra-pure water. (Drawing includes non-English language text).