“…They have exhibited great application potential because of the advantages of ease of preparation, high column efficiency, high selectivity and good pH stability. [10][11][12] The common monolithic stationary phases with reversed-phase mode mainly include C18, 13 C12, 14 C4, 15 styrene, 16,17 4-vinylbiphenyl, 5,6 and graphene oxide. 18 CEC with monolithic stationary phase mentioned above has been successfully applied for the separation of polycyclic aromatic hydrocarbons (PAHs), alkylbenzenes, amino acids, phenols, anilines, food additives, etc.…”