Electrochemical mediated preparation of chelating polymer brushes at paraffin-impregnated graphite electrode for Pb2+ sensing
作者： Guan-Ping Jin , Si-Yuan Xu , Ping Lei , Ya Fu , Xiaoshuang Feng
DOI: 10.1016/J.ELECTACTA.2014.03.060
关键词:
摘要: Abstract In this work, two-dimension iminodiacetic acid functional gclycidyl methacrylate polymer brushes were prepared at paraffin-impregnated electrode for Pb 2+ sensing. Gclycidyl using electrochemical mediated atom transfer radical polymerization, ring-opening reaction of the epoxy groups was enforced to form chelating (IGMA/WGE). The carefully examined by fourier transform infrared spectroscopy, field emission scanning electronmicroscope and electrochemistry techniques. Abundant evenly coated WGE with an average size 0.1 × 2 μm. Further IGMA/WGE successfully used determination differential pulse adsorptive anodic stripping voltammetry. current responses (-0.58 V) linearly increased depending on concentration from 3 90 nM ( i (μA) = -1.12 + 0.82 c (nM), limit 0.79 nM, 3σ). present is potentially useful real sample analysis.
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