三种氨基酸修饰玻碳电极表面荷电性质均会随着溶液环境的改变而发生变化。
The surface charge character of three kinds of amino modified electrodes will vary with the change of environment.
三种氨基酸修饰玻碳电极表面在中性溶液均呈现荷负电性，对于带负电荷的活性探针离子均具有静电排斥作用。
In neutral condition, three kinds of amino monolayer show electronegative, which has an electrostatic repulsion to the negative REDOX probe.
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