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Title of Journal: Microchim Acta

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Abbravation: Microchimica Acta

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Springer Vienna

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DOI

10.1016/0005-2744(67)90097-6

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1436-5073

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Reduced graphene oxide conjugate thymine as a new

Authors: Hani Nasser Abdelhamid HuiFen Wu
Publish Date: 2015/04/14
Volume: 182, Issue: 9-10, Pages: 1609-1617
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Abstract

We report on a highly sensitive and remarkably selective fluorometric assay for mercuryII ion It is based on the formation of a complex between thymine T and HgII to form the HgT2H2O2n complex on the surface of reduced graphene oxide rGO This causes the fluorescence emission of rGO peaking at 550 nm to be quenched Under optimal conditions quenching is selective and fluorescence intensity is linearly related to the concentration of HgII in the range between 100 and 700 nM The limit of detection is 5 nM In addition to its sensitivity and selectivity the method is simple and direct

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