Li Doped Bismuth Oxide Nanorods for Electrochemical Detection of Tartaric Acid

A modified glassy carbon electrode (GCE) on Li doped Bi oxide nanorods has been prepared to study the electrochemical responses of tartaric acid. Electrochemical impedance spectroscopy shows that Li doped Bi oxide nanorods have high electron transfer ability between the electrolyte and the modified GCE. Two pairs of cyclic voltammogram peaks are located at–0.49, +0.04 V (cvp1 and cvp1′) and +0.68,–0.39 V (cvp2 and cvp2′), respectively. The linear range is 0.001–2 mM, and the detection limit is 0.69 and 0.77 μM for cvp1 and cvp2, respectively. The modified GCE on Li doped Bi oxide nanorods shows a wide linear range, a low detection limit, good repeatability and stability.