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Compact sensor systems for on-site monitoring of groundwater for trace organic compounds in the liquid phase are currently under development in our laboratories. Potential challenges include sensor baseline drift and the presence of outliers in the data, along with difficulties extracting the contribution of individual BTEX compound (benzene, toluene, ethylbenzene, and xylenes) from the sensor response...
This work addresses the importance of ambient conditions in the design of a sensor system for real-time monitoring of contaminated water sites and groundwater in situ for fuel and oil spills. The sensor system is based on shear-horizontal surface acoustic wave devices with chemically sensitive polymer coatings for analyte sorption. In addition to the use of a sensor array, evaluation of response time...
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