A sensitive graphene and ethyl 2-(4-ferrocenyl-[1,2,3]triazol-1-yl) acetate modified carbon paste electrode for the concurrent determination of isoproterenol, acetaminophen, tryptophan and theophylline in human biological fluids

A novel and simple method was developed for simultaneous determination of isoproterenol, acetaminophen, tryptophan and theophylline.99