title: A Method for the Highly Selective, Colorimetric and Ratiometric Detection of Hg(2+) in a 100% Aqueous Solution.
abstract: Mercury (Hg) and its derivatives pose a serious threat to the environment and human health. Thus, the development of methods for the selective and sensitive determination of Hg(2+) is very important to understand its distribution, and to implement more detailed toxicological studies. Herein, we developed a new method for the detection of Hg(2+) based on the tricyanoethylene derivative and mercaptoethanol. This method could selectively detect Hg(2+) in a 100% aqueous solution by the naked-eye within the range of 1 - 60 μM. Importantly, this method also could detect Hg(2+) quantitatively by ratiometic absorption spectroscopy in the range of 0.1 - 6 μM with a detection limit of 55 nM. We anticipate that this proposed method will be used widely to monitor Hg(2+) in the environment.
authors.affiliation: School of Resources and Environment, University of Jinan, Shandong Provincial Engineering Technology Research Center for Ecological Carbon Sink and Capture Utilization.
authors.forename: Jingkai
authors.initials: J
authors.lastname: Liu
authors.forename: Zhenghe
authors.initials: Z
authors.lastname: Xu
authors.forename: Lirong
authors.initials: L
authors.lastname: Xu
authors.forename: Zhen
authors.initials: Z
authors.lastname: Bian
authors.forename: Guoqing
authors.initials: G
authors.lastname: Sang
authors.forename: Baocun
authors.initials: B
authors.lastname: Zhu
mesh_terms: D065966:Absorption, Physicochemical; D003124:Colorimetry / Q000295:instrumentation / Q000379:methods*; D006863:Hydrogen-Ion Concentration; D057230:Limit of Detection; D008623:Mercaptoethanol / Q000737:chemistry; D008628:Mercury / Q000032:analysis*; D008962:Models, Theoretical; D009570:Nitriles / Q000737:chemistry; D012680:Sensitivity and Specificity; D012996:Solutions; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D009570:Nitriles; D012996:Solutions; D014874:Water Pollutants, Chemical; D008623:Mercaptoethanol; D008628:Mercury