A New and Reproducible Surface-Enhanced Resonance Raman Scattering Method for the Determination of Trace Au(III) in Solution Using 4-Mercaptopyridine as Molecular Probe

Yan Yan Wei; Gui Qing Wen; Qing Ye Liu; Zhi Liang Jiang

doi:10.4028/www.scientific.net/AMR.664.32

Paper Titles

Experiment and Practice on the Wastewater Treatment in Tunnel Construction Processing
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A New and Reproducible Surface-Enhanced Resonance Raman Scattering Method for the Determination of Trace Au(III) in Solution Using 4-Mercaptopyridine as Molecular Probe
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 664A New and Reproducible Surface-Enhanced Resonance...

A New and Reproducible Surface-Enhanced Resonance Raman Scattering Method for the Determination of Trace Au(III) in Solution Using 4-Mercaptopyridine as Molecular Probe

Abstract:

In pH 6.5 Na2HPO4-NaH2PO4 buffer solution and in the presence of stable reagent PEG10000 and aggregation reagent NaCl, nanosilvers were aggregated to form stable aggregated-nanosilvers (ANS). The molecular probe of 4-mercaptopyridine (MP) adsorbed on the surface of ANS to form MP-ANS conjugates that produce strongest surface-enhanced resonance Raman scattering (SERRS) peak at 1097 cm-1. When Au(III) was added, the SERRS intensity at 1097 cm-1 decreased. The decreased SERRS intensity was linear to Au(III) concentration in the range of 5-50 ×10-10 mol/L, with a detection limit of 2.0×10-10 mol/L Au(III).

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Periodical:

Advanced Materials Research (Volume 664)

Pages:

32-36

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.664.32

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Online since:

February 2013

Authors:

Yan Yan Wei, Gui Qing Wen, Qing Ye Liu, Zhi Liang Jiang

Keywords:

4-Mercaptopyridine, Aggregated-Nanosilver, Au(III), Surface-Enhanced Raman Scattering Method

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