▎ 摘　　要

The purpose of this analytical research is the capability of sensing different K+concentrations by the ion-sensitive field effect transistor (ISFET) based on graphene. By gate voltage variation values, K+ion concentration in the electrolyte can be measured, since there are interactions between the K+and the gate ions. We have applied the adaptive neuro-fuzzy inference system (ANFIS) model to predict the current-voltage (I-V) characteristic which has resulted in satisfactory performance.