Abstract: A novel molecularly imprinted membranes electrochemical sensor with good memory capacity to acetamiprid was developed. Based on electrodeposition technique, chitosan was deposited on to the surface of gold electrode as a functional polymer matrix along with aimed molecules acetamiprid and glutaraldehyde as a crosslinking agent. Cationic probe Ru(NH3)6Cl3 was employed to indirectly investigate the electrochemical electrochemical response characteristics as well as the imprinted effect of the sensors. The results showed that the sensors had a specific recognition to acetamiprid compared to the structural similarity midacloprid and other pesticide. There is more sensitive response to acetamiprid at imprinted sensors than that at nonprinted sensors with a good linearity over the concentration range of 1.0 x 10-7 ~ 2.0 x 10-5 mol/L. The prepared sensors can be exploited for the separation and analysis performing simultaneously to acetamiprid in the pesticide residue sample.
Template and target information: acetamiprid
Author keywords: molecular imprinting, Electrochemical sensor, chitosan, acetamiprid