The experiment results indicated that Lys/GCE not only can improve the electrochemical behaviors of DA and AA, but also can resolve the mixed voltammetric response of DA (pKa=8.82) and AA (pKa=4.12) at GCE into two well-defined voltammetric peaks.

• 实验结果表明，Lys/GCE不仅能改善DA和AA电化学可逆行为，而且可将DA(pKa=8.；82)和AA(pKa=4