Electrochemical Determination of Ferulic Acid in Pinellia Ternata Based on GOs/MWCNTs Nanocomposite Modified Electrode

The rapid electrochemical determination of ferulic acid (FA) was assiduously scrutinized by cyclic voltammetry (CV) using graphene oxide sheets (GOs) and multi-walled carbon nanotubes (MWCNTs) nanocomposites modified glassy carbon electrode. The synergistic out-come of GOs and MWCNTs resulted in superior electrocatalysis performance. Under optimal conditions, the peak current was proportional to FA concentration in the range of 0.24 mu M to 32 mu M, and 88 mu M to 1.23 mM, with a relative low detection limit of 0.08 mu M. Besides, it was successfully applied to detect FA in Pinellia ternate with recovery values in the range of 102.8%-113.2%, which made it a potential alternative tool for the quantitative detection of FA in pharmaceutical analysis and quality evaluation of traditional Chinese medicine.