Method and apparatus for detecting gem-polyhaolgenated hydrocarbons

Patent · Tue May 29 00:00:00 EDT 1990

OSTI ID:5729439

Anderson, W G; Anderson, J S

This patent describes a method of detecting gem-polyhalogenated hydrocarbons. It comprises: combining a pyridine reaction constituent; reacting the reaction mixture with a gem-polyhalogenated hydrocarbon; illuminating the reaction product with an illumination beam; and detecting the gem-polyhalogenated hydrocarbon by at least one of the fluorescence and absorbance of the reaction product. This patent also describes an apparatus for monitoring the concentration of gem-polyhalogenated hydrocarbons in a sample fluid. The apparatus comprises: a fiber optic; a reaction mixture; means attached to the second end of the fiber optic for holding the reaction mixture adjacent the second end of the fiber optic and for separating the reaction mixture from a sample fluid whenever the second end of the fiber optic is immersed in a sample fluid; means adjacent to the first end of the fiber optic for separating light from the associated light source from the fluorescent signal collected and transmitted by the fiber optic; and detection means adjacent to the separation means for collecting and analyzing the fluorescent signal generated by the reaction mixture.

• Assignee: The Regents of the Univ. of California, Berkeley, CA (USA)
• Patent Number(s): A; US 4929562
• Application Number: PPN: US 6-898078A
• OSTI ID: 5729439
• Country of Publication: United States
• Language: English

Related Subjects

440600* -- Optical Instrumentation-- (1990-)
47 OTHER INSTRUMENTATION
AQUEOUS SOLUTIONS
AZINES
DESIGN
DETECTION
DISPERSIONS
FIBER OPTICS
FLUORESCENCE
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
KINETICS
LIGHT SOURCES
LUMINESCENCE
MIXTURES
OPERATION
OPTICAL SYSTEMS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PYRIDINES
RADIATION SOURCES
REACTION KINETICS
SOLUTIONS