Abstract
Real-time detection of hydrocarbon contaminants in the environment presents analytical challenges because traditional laboratory-based techniques are cumbersome and not readily field portable. In the current work, a method for rapid and semi-quantitative detection of organic contaminants, primarily crude oil, in natural water and soil matrices has been developed. Detection limits in the parts per million and parts per billion were accomplished when using visual and digital detection methods, respectively. The extraction technique was modified from standard methodologies used for hydrocarbon analysis and provides a straight-forward separation technique that can remove interference from complex natural constituents. For water samples this method is semi-quantitative, with recoveries ranging from 70% to 130%, while measurements of soil samples are more qualitative due to lower extraction efficiencies related to the limitations of field-deployable procedures.
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