Zhao, Zi Wei, et al. “Indirect Detection of 5-Hydroxytryptamine and Tyramine by Using tris(2,2’-bipyridyl)ruthenium-Graphene Modified Electrode Coupled With Capillary Electrophoresis”. European Journal of Chemistry, vol. 10, no. 4, Dec. 2019, pp. 336-44, doi:10.5155/eurjchem.10.4.336-344.1852.