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Title: A novel sensor for monitoring leakage of petroleum and other liquid hydrocarbons into soil environments. Author: Ritchie L, Ferguson C, Saini S. Journal: J Environ Monit; 2000 Apr; 2(2):193-6. PubMed ID: 11253042. Abstract: This paper describes the use of a potentially implantable infrared reflectometer for the qualitative detection of petroleum and a number of other hydrocarbon solvents. A rugged, low-power, re-useable sensor was evaluated in the laboratory for its ability to detect petrol in soil. A hydrophobic fluoropolymer was used as the sensing surface due to its high selectivity for petroleum hydrocarbons. The photocurrent reflected by this surface from a near IR source was measured to test for petroleum saturation within the membrane, which in turn was an indicator of petroleum in the surrounding soil. The simplicity in the sensor design enabled a stable, low cost detection method for petroleum and other hydrocarbons, ideal for use in sub-surface applications.[Abstract] [Full Text] [Related] [New Search]