Nitrogen-doped graphene–poly(hydroxymethylated-3,4-ethylenedioxythiophene) nanocomposite electrochemical sensor for ultrasensitive determination of luteolin

A sensitive and selective electrochemical sensor was constructed by one-step co-electropolymerization of hydroxymethylated-3,4-ethylenedioxythiophene and nitrogen-doped graphene for the trace-level analysis of luteolin in Thymus vulgaris , Lonicera japonica , and Lamiophlomis rotata .