H igh selective and sensitive voltamm etric sensor base on modifie d multi wall carbon nanot ubes paste electrod e and ۳,۴ -Dihydr oxycinamic acidfor determin ation of ascorbic acid

The interest in chemically modified electrodes (C MEs) has increased tremendousl y during the last decade owing to their potential a pplications and a large number of publicatio ns have been ap peared [۱].Multiwall carbon nanotubes (MWCNTs) are now u sed extensi vely in the fabrication of novel nanostructure electrochemicalsensors [۲]. MW CNT-modified electrodes hav e many advanta ges over other forms of carb on electrodes due to high electrical and thermal conductivity, high chemical stability and high spe ific surface area whic h make them very promising candidates in a wide range of application s.

کلیدواژه ها:

Ascorbic acid ، ۳ ، ۴-Dihy droxycinamic acid ، Voltammetry ، Carbon paste electro de ، Multiwa ll carbon nanotubes