Demonstration and Validation of a Portable Raman Sensor for in-situ Detection and Monitoring of Perchlorate (ClO4-)
OAK RIDGE NATIONAL LAB TN OAK RIDGE
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The overall goal of the project was to field-demonstrate, validate, and optimize the performance and sensitivity of a portable Raman sensor for rapid detection and analysis of the energetic compound perchlorate ClO4- in contaminated groundwater at multiple U.S. Department of Defense DoD military installations. Specific objectives were to 1 construct and validate the performance of a portable Raman sensor forClO4- detection in groundwater with varying characteristics, 2 optimize the performance and sensitivity of the sensor through nano-fabrication of surface-enhanced Raman scattering SERS substrates and the fiber-optic sensor probe, 3 optimize field-testing methodologies and establish testing protocols, 4 partner with a commercial vendor for large-scale production of SERS substrates via Nano imprinting, and 5 evaluate and document the cost effectiveness of the new sensing technology by comparing with conventional laboratory-based analytical protocols.
- Physical Chemistry