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:
-
- North Augusta, SC
- Perkiomenville, PA
- Issue Date:
- Research Org.:
- Savannah River Site (SRS), Aiken, SC (United States)
- OSTI Identifier:
- 870111
- Patent Number(s):
- 5457313
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
- 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 = {Sun Jan 01 00:00:00 EST 1995},
month = {Sun Jan 01 00:00:00 EST 1995}
}
Works referenced in this record:
Spectrophotometric study of coverage and acid-base equilibrium of a chemically bonded base
journal, April 1977
- Mimms, L. T.; McKnight, M. A.; Murray, Royce W.
- Analytica Chimica Acta, Vol. 89, Issue 2