[KM-7-3] Valinomycin-Modified Graphene Field-Effect Transistors for Potassium Ion Sensors Y. Sofue1, Y. Ohno1, K. Maehashi1, K. Inoue1, K. Matsumoto1 (1.Osaka Univ. , Japan) https://doi.org/10.7567/SSDM.2011.KM-7-3