期刊
ANALYST
卷 136, 期 8, 页码 1697-1702出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0an00982b
关键词
-
资金
- U.S. Department of Defense
- Center for Nanophase Materials Sciences (CNMS)
- Office of Basic Energy Sciences, US Department of Energy
- US Department of Energy [DE-AC05-00OR22725]
An integrated field-portable surface enhanced Raman scattering (SERS) sensing system has been developed and evaluated for quantitative analysis of energetics such as perchlorate (ClO4-) and trinitrotoluene (TNT) at environmentally relevant concentrations and conditions. The detection system consists of a portable Raman spectrometer equipped with an optical fiber probe that is coupled with novel elevated gold bowtie nanostructural arrays as a sensitive and reproducible SERS substrate. Using the standard addition technique, we show that ClO4- and TNT can be quantified at concentrations as low as 0.66 mg L-1 (or similar to 6.6 mu M) and 0.20 mg L-1 (similar to 0.9 mu M), respectively, in groundwater samples collected from selected military sites. This research represents the first step toward the development of a field SERS sensor which may permit rapid, in situ screening and analysis for various applications including national security, chemical, biological and environmental detection.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据