Naked-eye sensor for rapid determination of mercury ion.

@article{Liu2013NakedeyeSF,
  title={Naked-eye sensor for rapid determination of mercury ion.},
  author={J. Liu and Dapeng Wu and Xiaohui Yan and Y. Guan},
  journal={Talanta},
  year={2013},
  volume={116},
  pages={
          563-8
        }
}
A naked-eye paper sensor for rapid determination of trace mercury ion in water samples was designed and demonstrated. The mercury-sensing rhodamine B thiolactone was immobilized in silica matrices and the silica matrices were impregnated firmly and uniformly in the filter paper. As water samples flow through the filter paper, the membrane color will change from white to purple red, which could be observed obviously with naked eye, when concentration of mercury ions equals to or exceeds 10nM… Expand
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