▎ 摘　　要

NOVELTY - The method involves weighing a graphene sample. The graphene sample is grinded to obtain flaky graphite particles. The flaky graphite particles are completely soaked in water. The flaky graphite particles are uniformly mixed by vortex to extract anion content. The water is filtered by an ultrasonic needle filter and an aqueous filtration membrane. A chromatographic detection process is performed. The anion content is detected by gradient ion chromatograph. A detection curve is compared with a standard curve for calculating the anion content according to a peak area, where water is about 0.1 -70 wt.%. USE - Method for measuring anion content in graphene powder. ADVANTAGE - The method enables simultaneously measuring multiple ionic components with high sensitivity in an easy manner and obtaining stable and reliable measuring results.