Detection of trace levels of mercury in aqueous systems via a fiber optic probe

Details Detection of trace levels of mercury in aqueous systems via a fiber optic probe Detection of trace levels of mercury in aqueous systems via a fiber optic probe

Mar 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994spie.2068..286e&link_type=abstract

Proc. SPIE Vol. 2068, p. 286-295, Chemical, Biochemical, and Environmental Fiber Sensors V, Robert A. Lieberman; Ed.

Physics

Scientific paper

Currently there is a great deal of interest in the development and use of fiber optic chemical sensors for characterization of contaminated waste sites. Development of remote, in-situ sensors for rapid determination of the presence, and concentration of hazardous materials will significantly reduce site remediation costs. The state-of-the-art technology for assessing site contamination is the cone penetrometer system. This system consists of a 2-1/2 ton truck, a hydraulic ram, and a steel tube. The steel tube, which is generally 1-3/4 inches OD and 1 inch ID, has a sharp tip on one end. To begin site characterization the penetrometer tube is placed into the hydraulic ram then the tube is pushed into the ground. Sensors are mounted in the penetrometer tube to measure contaminants in the surrounding soil and ground water. This system has several distinct advantages over conventional drilling techniques. Additionally, site characterization can be performed much quicker than standard drilling techniques. Fiber optic chemical sensors are readily applicable towards use in cone penetrometer systems since they are small in size and can report real time, in-situ results. Some fiber optic chemical sensors have been deployed and tested in the cone penetrometer system.

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