摘要
用牛血清蛋白和戊二醛交联将纳米金固定在玻碳电极上,形成了纳米金修饰的玻碳电极。研究了三类硝基类化合物包括对氧磷神经毒剂、对硝基酚、硝基苯在纳米金修饰的玻碳电极的伏安行为进行了研究。实验发现纳米金能显著地降低硝基类化合物在电极上的伏安氧化还原电位,且硝基类化合物在该电极上具有对称不可逆的氧化还原峰,浓度在1.0×10^(-7)～1.0×10^(-5)mol/L范围内与还原峰电流呈线性关系。
The gold nanoparticles film modified glassy carbon electrode was formed from gold nanoparticles encapsulated in bovine serum albumin ( BSA ) film cross - linked by glutaralde-hyde. The cyclic voltammetric behavior of nitro - compounds including paraoxon nerve agent, p -nitrophenol and nitrobenzene were studied with this electrode. It can be seen that the gold nanoparticles low the level of electrochemical redox potential of nitro - compound significantly. One or two pairs of well - defined and reversible voltammetric waves can be observed. A linear relationship between the concentration of paraoxon in solution and its reduce peak currents of CV on this electrode in the range of 1. 0 × 10 -7 - 1. 0 × 10-5 mol /L was obtained.
出处
《化学传感器》
CAS
2003年第1期44-48,共5页
Chemical Sensors
