However, some shortcomings restrict their applications, such asexpensive and sophisticated instrumentations, complicated designand synthesis, and poor aqueous solubility. Up to now, manyelectrochemical methods have been developed for routine andeffective detection such as quartz crystal microbalance analysis [13], differential pulse stripping analysis [14,15], and chronopoten-tiometric stripping analysis [16]. However, due to the non-specificinteraction between the electrode modifier and Hg2+, few methodscan meet the requirement of selectivity at the same time.