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Selective Colorimetric Sensor for Hg2+ Ions Using a Mixture of Thiourea Derivatives and Gold Nanoparticles Stabilized with Adenosine Triphosphate
- Issue Date
- 3-Dec-2010
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- adenosine triphosphate; chemosensors; gold; mercury; nanoparticles
- Citation
- CHEMISTRY-AN ASIAN JOURNAL, v.5, no.12, pp 2463 - 2466
- Pages
- 4
- Journal Title
- CHEMISTRY-AN ASIAN JOURNAL
- Volume
- 5
- Number
- 12
- Start Page
- 2463
- End Page
- 2466
- ISSN
- 1861-4728
1861-471X
- Abstract
- The mercury prize: A highly selective and sensitive unmodified gold-nanoparticle (AuNP)-based colorimetric sensor for Hg2+ ions in aqueous media uses the Hg2+-promoted desulfurization reaction of a thiourea derivative and the reactivity of a thiourea derivative to gold nanoparticles. This sensor also allows a quantitative assay of the analyte in a neutral aqueous solution, down to a concentration of 10-7 M. © 2010 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
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