Polyaniline Nanowire Arrays Deposited on Porous Carbon Derived from Raffia for Electrochemical Detection of Imidacloprid

An electrochemical sensor based on raffia derived porous carbon (RPC) and polyaniline (PANI) composite functional glass carbon electrode (GCE) was constructed for imidacloprid (IMI) determination. PANI nanowire arrays were deposited on RPC surface uniformly without aggregations. The electrochemical response of IMI at RPC@PANI/GCE is about four times than that at bare GCE, indicating high electrocatalytic activity of RPC@PANI towards IMI reduction. The prepared sensor also offers a wide linear range of 0.1-70 mu g mL(-1) for IMI determination with a limit of detection (LOD) of 0.03 mu g mL(-1). In addition, it offers high recoveries with testing real samples.

Automated summary

An electrochemical sensor based on RPC and PANI was constructed for the determination of IMI, showing high electrocatalytic activity and a wide linear range. The sensor also offers high recoveries in testing real samples.