Sự thay đổi các điện cực carbon thủy tinh bằng 2-aminoethanethiolate tự lắp ghép đơn lớp trên các hạt nano vàng được sử dụng để phát hiện các hg (ii) theo nồng độ vết

• Tác giả: Hoang Anh Nguyen, Hong Phong Pham
• Ngôn ngữ: vie
• Ký hiệu phân loại: 547.7 Macromolecules and related compounds
• Thông tin xuất bản: Hoá học, 2013
• Mô tả vật lý: 589-593
• Bộ sưu tập: Metadata
• ID: 639696

Tóm tắt

The aim of this work was to investigate the use of the modified glassy carbon with gold nanoparticles (Au-NPs) coated with 2-aminoethanithiolate self-assembled monolayer in detection of Hg(II) in trace concentrations. Scanning electronic microscopy images obtained clearly show the formation of Au-NPs on the GCE surface in nanometer scale. Reductive desorption peak appeared on cyclic voltammogram revealed the assembly of AET on Au-NPs. The linear relationship between peak current of reduction of Hg(II) coordinated with AET-SAM measured by differential pulse voltammetry on the concentration in solution was obtained with the coefficient efficiency was 0.986.