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Title: Fiber optic detector and method for using same for detecting chemical species

Abstract

An optical sensing device for uranyl and other substances, a method for making an optical sensing device and a method for chemically binding uranyl and other indicators to glass, quartz, cellulose and similar substrates. The indicator, such as arsenazo III, is immobilized on the substrate using a chemical binding process. The immobilized arsenazo III causes uranyl from a fluid sample to bind irreversibly to the substrate at its active sites, thus causing absorption of a portion of light transmitted through the substrate. Determination of the amount of light absorbed, using conventional means, yields the concentration of uranyl present in the sample fluid. The binding of uranyl on the substrate can be reversed by subsequent exposure of the substrate to a solution of 2,6-pyridinedicarboxylic acid. The chemical binding process is suitable for similarly binding other indicators, such as bromocresol green.

Inventors:
 [1];  [2]
  1. (North Augusta, SC)
  2. (Perkiomenville, PA)
Issue Date:
Research Org.:
WESTINGHOUSE SAVANNAH RIVER CO
OSTI Identifier:
870111
Patent Number(s):
5457313
Assignee:
United States of America as represented by United States (Washington, DC) SRS
DOE Contract Number:  
AC09-89SR18035
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
fiber; optic; detector; method; detecting; chemical; species; optical; sensing; device; uranyl; substances; chemically; binding; indicators; glass; quartz; cellulose; similar; substrates; indicator; arsenazo; iii; immobilized; substrate; process; causes; fluid; sample; bind; irreversibly; active; sites; causing; absorption; portion; light; transmitted; determination; amount; absorbed; conventional; means; yields; concentration; reversed; subsequent; exposure; solution; 6-pyridinedicarboxylic; acid; suitable; similarly; bromocresol; green; optical sensing; fluid sample; active sites; fiber optic; chemical species; sample fluid; sensing device; carboxylic acid; chemical specie; light transmitted; optic detector; chemically bind; light absorbed; conventional means; dicarboxylic acid; detecting chemical; /250/422/

Citation Formats

Baylor, Lewis C., and Buchanan, Bruce R. Fiber optic detector and method for using same for detecting chemical species. United States: N. p., 1995. Web.
Baylor, Lewis C., & Buchanan, Bruce R. Fiber optic detector and method for using same for detecting chemical species. United States.
Baylor, Lewis C., and Buchanan, Bruce R. Sun . "Fiber optic detector and method for using same for detecting chemical species". United States. https://www.osti.gov/servlets/purl/870111.
@article{osti_870111,
title = {Fiber optic detector and method for using same for detecting chemical species},
author = {Baylor, Lewis C. and Buchanan, Bruce R.},
abstractNote = {An optical sensing device for uranyl and other substances, a method for making an optical sensing device and a method for chemically binding uranyl and other indicators to glass, quartz, cellulose and similar substrates. The indicator, such as arsenazo III, is immobilized on the substrate using a chemical binding process. The immobilized arsenazo III causes uranyl from a fluid sample to bind irreversibly to the substrate at its active sites, thus causing absorption of a portion of light transmitted through the substrate. Determination of the amount of light absorbed, using conventional means, yields the concentration of uranyl present in the sample fluid. The binding of uranyl on the substrate can be reversed by subsequent exposure of the substrate to a solution of 2,6-pyridinedicarboxylic acid. The chemical binding process is suitable for similarly binding other indicators, such as bromocresol green.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {1}
}

Patent:

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