Journal
MICROCHIMICA ACTA
Volume 185, Issue 6, Pages -Publisher
SPRINGER WIEN
DOI: 10.1007/s00604-018-2817-3
Keywords
Hg2+ analysis; Environmental samples; Industrial waste water; Heavy metal ions; Electron transfer; Stern-Volmer plot; Non-conjugated polymers; Dynamic quenching
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Funding
- National Natural Science Foundation of China [21675131]
- Municipal Science Foundation of Chongqing City [CSTC-2015jcyjB50001]
- National Undergraduate Training Program for Innovation and Entrepreneurship [201610635036]
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Water-soluble fluorescent polymer dots (PDs) were prepared from polyethylenimine and glutathione and are shown to be viable fluorescent probes for selective and sensitive determination of Hg(II). The PDs possess bright blue fluorescence (with excitation/emission peaks at 340/462 nm) which is quenched on addition of Hg(II). Based on these findings, a fluorometric assay was worked out. Fluorescence linearly drops in the 0.1 to 100 mu M Hg(II) concentration range, and the limit of detection is 32 nM.
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