半胱胺修饰金电极分离多巴胺和抗坏血酸
Journal of Henan Institute of Science and Technology(Natural Science Edition)(2010)
Abstract
半胱胺通过S-Au键修饰到金电极上形成半胱胺自组装单分子膜修饰金电极,该电极对多巴胺和抗坏血酸具有电催化作用,用示差脉冲法和循环伏安法对多巴胺(DA)和抗坏血酸(AA)进行测定,二者峰电位差为220mV,且该修饰电极稳定性与重现性好.
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Key words
dopamine,ascorbic acid,differential pulse voltammetry,cyclic voltammetry,self-assembled mono-layer
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