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Reports from Shanghai Normal University Add New Data to Findings in Chemical Sensors and Actuators (Detection of trace mercury ions in water by a...

July 8, 2014



Reports from Shanghai Normal University Add New Data to Findings in Chemical Sensors and Actuators (Detection of trace mercury ions in water by a novel Raman probe)

By a News Reporter-Staff News Editor at Journal of Technology -- Investigators publish new report on Chemical Sensors and Actuators. According to news originating from Shanghai, People's Republic of China, by VerticalNews correspondents, research stated, "The convenient chemical method for sensing mercury ion (Hg2+) has drawn significant attention in recent researches. Herein we report a simple, ultrasensitive and inexpensive protocol to detect trace mercury ions in water without complicatedly tagging, based on the facile synthesis of a nanocomposition, which is constructed with inositol hexaphosphate (IP6) stabilized gold nanoparticles (Au NPs) modified by crystal violet (CV) as Raman signal molecule and tri-sodium citrate (TC) as reducer, shortly named CV/TC/IP6/Au NPs."

Our news journalists obtained a quote from the research from Shanghai Normal University, "A possible mechanism for the Raman probe is the decreasing intensity of SERS band at 1173 cm(-1) of crystal violet (CV) with Hg2+ addition due to the reduction of Hg2+ by TC to Hg atom whose competition with CV molecules at the IP6/Au NPs surface, resulting in CV molecules detachment from the surface. The proposal Raman probe shows an unprecedented limit of detection (LOD) of 0.5 pM for Hg2+."

According to the news editors, the research concluded: "This SERS-based method of Hg2+ determination could be expected to have wide-range applications in many areas such as analysis of trace Hg2+ in river water."

For more information on this research see: Detection of trace mercury ions in water by a novel Raman probe. Sensors and Actuators B-Chemical, 2014;199():108-114. Sensors and Actuators B-Chemical can be contacted at: Elsevier Science Sa, PO Box 564, 1001 Lausanne, Switzerland.

The news correspondents report that additional information may be obtained from S.Y. Fu, Shanghai Normal Univ, Dept. of Chem, Shanghai 200234, People's Republic of China. Additional authors for this research include X.Y. Guo, H. Wang, T.X. Yang, Y. Wen and H.F. Yang.

Keywords for this news article include: Asia, Shanghai, People's Republic of China, Chemical Sensors and Actuators

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Journal of Technology


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