Fabrication of an electrochemical sensor based on nanostructured polyaniline doped with tungstophosphoric acid for simultaneous determination of low concentrations of norepinephrine, acetaminophen and folic acid

► Synthesizing of nanostructured polyaniline doped with tungstophosphoric acid ► Confirming its special structure by FT-IR and SEM studies ► Fabrication of a sensor by carbon paste electrode modified with this nanostructure ► Electrochemical study of norepinephrine, acetaminophen and folic acid at the sensor ► Obtaining interesting linear ranges and detection limits by the sensor