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Demonstration and Validation of a Portable Raman Sensor for In-Situ Detection and Monitoring of Perchlorate (ClO4-)

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Technical Report,01 Jan 2013,31 Mar 2017

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Oak Ridge National Laboratory Oak Ridge United States

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Costs for environmental analysis and monitoring are increasing at a rapid rate and represent a significant percentage of the total and future remedial expenses at many U.S. Department of Defense DoD contaminated sites. It has been reported that about 30 to 40 of the remediation budget is usually spent on long-term monitoring LTM, of which a large percentage represents laboratory analytical costs. Energetics such as perchlorate ClO4- are among the most frequently detected contaminants in groundwater and surface water at or near military installations due to their persistence and mobility. Currently, the standard protocol entails collecting samples in the field, packaging them, and shipping them overnight to a designated laboratory for analysis. This process requires significant sample preparation and handling, and analytical results may not be available for several days to weeks. In this project, we developed and demonstrated a portable Raman sensor based on surface enhanced Raman scattering SERS technology to detect ClO4- in contaminated water.

Subject Categories:

  • Inorganic Chemistry
  • Miscellaneous Detection and Detectors

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