Amperometric sensing of hydrogen peroxide using a glassy cabon electode modified with silver nanoparticles on poly(alizarin yellow R)

作者：Zhang, Keying^*; Zhang, Na; Zhang, Li; Xu, Jigui; Wang, Hongyan; Wang, Cong; Geng, Tao

来源：Microchimica Acta, 2011, 173(1-2): 135-141.

DOI：10.1007/s00604-010-0534-7

• Hydrogen peroxide
• Silver nanoparticles
• Alizarin yellow R
• Modified electrode

A sensitive amperometric sensor for hydrogen peroxide (HP) was constructed that is based on a glassy carbon electrode (GCE) modified with silver nanoparticles on poly(alizarin yellow R). The polymer was electropolymerized onto the surface of the GCE by cyclic voltammetry (CV), and the AgNPs were then electrodeposited onto its surface. The electrode was characterized by scanning electron microscopy and CV, and used for amperometric determination of HP. The electrode exhibits a favorable catalytic activity towards the reduction of HP, with a linear response range from 1.0 mu M to 450 mu M and a detection limit of 0.32 mu M. The sensor also displays high selectivity, excellent reproducibility, and good long-term stability.

• 出版日期2011-4
• 单位宿州学院; 苏州大学