“…Although a number of research strategies have been developed for the accurate and sensitive detection of Hg 2 þ , including inductively coupled plasma-mass spectrometry (ICP-MS), ion-selective electrode or polarography, and atomic absorption/emission spectroscopy (Guo et al, 2009;Wang et al, 2007), most current instrumental methods are inconvenient, requiring sophisticated instrumentation or sample preparation, time-consuming analysis, and technical expertize. Colorimetric (Li et al, 2009b;Wang et al, 2010b), electrochemical , and other methods Stobiecka et al, 2012) have also been established because of their simple operation, excellent sensitivity, and time-saving process features.…”