“…Therefore, it’s of great significance for the quantitative monitoring of Hg 2+ in medicine and environment. Up to now, a number of analytical methods have been applied to the detection of Hg 2+ , for example, colorimetry ( Gao et al, 2014 ; Balasurya et al, 2020 ), atomic absorption spectrometry (AAS) ( Hsu et al, 2011 ), fluorescence spectrometry ( Fang et al, 2018 ; Mao et al, 2019 ), gas chromatography (GC) ( Miranda-Andrades et al, 2019 ), etc. However, these traditional analysis methods require large equipment, high cost, complex operation and sample pre-processing.…”