The average apparent heterogeneous electron transfer rate constant (ks) obtained by fitting CV data for Hb on CNT-modified electrode was 0.0816 s-1,greater than the value obtained from the same method for Hb with methylene b lue as mediators.

• Hb在碳纳米管修饰电极表面的电子转移常数为0.；0816s-1；远大于亚甲蓝作媒介体时Hb的电子转移反应速率常数