The Preparation Of Nanoparticles Modified Electrodes By Electrodeposition And Its Application For Drug Molecules Determination

This dissertation focus on fully utilizing the unique characteristics of nano-materials and modern electrochemical technology conclude electrodepostion to prepare several novel small biomolecules electrochemical biosensors, developing sensitive, selective detection methods. The dissertation includes four chapters:Chapter 1 introduces the properties and research of nano-materials and the preparation of nanometer materials modified electrodes. A review is given on the electrochemical study of platinum and gold nanoparticles biosensors, including their importance and development. Puting forward the idea of this paper.Chapter 2: platinum nanoparticles (Pt NPs) were electrodeposited on the surface of MWCNTs modified glassy carbon electrode (GCE). Then the prepared electrode was applied for the determination of rutin. In addition, the Pt NPs / MWCNTs modified electrode had been applied to the determination of rutin in real samples.Chapter 3: gold nanoparticles (Au NPs) were electrodeposited on the surface of MWCNTs modified GCE. Then the Au NPs / MWCNTs modified electrode had been successfully applied for the determination of vitamin B₆ (VB₆). And the Au NPs / MWCNTs modified electrode had been applied to the determination of VB₆ in real samples.Chapter 4: Au NPs were electrodeposited on the surface of MWCNTs modified GCE. Then the prepared electrode was applied for the determination of vitamin B₂ (VB₂). It exhibited excellent voltammetric response for VB₂.Chapter 5: Au NPs were electrodeposited on the surface of graphene modified GCE by electrodeposition. Then the prepared electrode was applied for the determination of VB₆. The experimental results are good, and the prepared electrodes are expected to be applied to real sample examination.