Preliminary field demonstration of a fiber optic trichloroethylene sensor

S. Michael Angel; Kevin C. Langry; Jeffrey N. Roe; Bill W. Colston Jr.; Paul F. Daley; Fred P. Milanovich

doi:10.1117/12.24802

1 March 1991 Preliminary field demonstration of a fiber optic trichloroethylene sensor

S. Michael Angel, Kevin C. Langry, Jeffrey N. Roe, Bill W. Colston Jr., Paul F. Daley, Fred P. Milanovich

Proceedings Volume 1368, Chemical, Biochemical, and Environmental Fiber Sensors II; (1991) https://doi.org/10.1117/12.24802
Event: SPIE Microelectronic Interconnect and Integrated Processing Symposium, 1990, San Jose, United States

Abstract

We have developed a differential-absorption fiber-optic sensor for use in groundwater and vadose zone monitoring of certain volatile organochiorides. The principle of detection is a quantitative irreversible chemical reaction that forms visible light-absorbing products. The sensor has been evaluated against gas chromatographic (GC) standard measurements and has demonstrated accuracy and sensitivity sufficient for the environmental monitoring of trace levels of trichioroethylene (TCE) and chloroform. This sensor is currently under evaluation in monitoring well and vadose zone applications. In this paper we describe the principles of the existing single measurement sensor technology and show preliminary field test results.

Citation Download Citation

S. Michael Angel, Kevin C. Langry, Jeffrey N. Roe, Bill W. Colston Jr., Paul F. Daley, and Fred P. Milanovich "Preliminary field demonstration of a fiber optic trichloroethylene sensor", Proc. SPIE 1368, Chemical, Biochemical, and Environmental Fiber Sensors II, (1 March 1991); https://doi.org/10.1117/12.24802

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