Use of a fiber optic probe for organic species determination

Patent · Sun Dec 31 23:00:00 EST 1995

OSTI ID:870728

Ekechukwu, Amy A ^[1]

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1. Augusta, GA

A fiber optic probe for remotely detecting the presence and concentration organic species in aqueous solutions. The probe includes a cylindrical housing with an organic species indicator, preferably diaminonaphthyl sulfonic acid adsorbed in a silica gel (DANS-modified gel), contained in the probe's distal end. The probe admits aqueous solutions to the probe interior for mixing within the DANS-modified gel. An optical fiber transmits light through the DANS-modified gel while the indicator reacts with organic species present in the solution, thereby shifting the location of the fluorescent peak. The altered light is reflected to a receiving fiber that carries the light to a spectrophotometer or other analysis device.

• Research Organization: WESTINGHOUSE SAVANNAH RIVER CO
• DOE Contract Number: AC09-89SR18035
• Assignee: United States of America as represented by Department of Energy (Washington, DC)
• Patent Number(s): US 5583051
• OSTI ID: 870728
• Country of Publication: United States
• Language: English

Related Subjects

/436/422/
acid
admits
adsorbed
altered
analysis
analysis device
aqueous
aqueous solution
aqueous solutions
carries
concentration
contained
cylindrical
cylindrical housing
dans-modified
detecting
determination
device
diaminonaphthyl
distal
fiber
fiber optic
fluorescent
housing
indicator
interior
light
location
mixing
optic
optic probe
optical
optical fiber
organic
organic species
peak
preferably
presence
probe
reacts
receiving
receiving fiber
reflected
remotely
remotely detect
shifting
silica
solution
solutions
species
spectrophotometer
sulfonic
sulfonic acid
transmits