Jump to main content
US EPA
United States Environmental Protection Agency
Search
Search
Main menu
Environmental Topics
Laws & Regulations
About EPA
Health & Environmental Research Online (HERO)
Contact Us
Print
Feedback
Export to File
Search:
This record has one attached file:
Add More Files
Attach File(s):
Display Name for File*:
Save
Citation
Tags
HERO ID
1485836
Reference Type
Technical Report
Title
Detection of chlorinated aromatic compounds
Author(s)
Ekechukwu, AA
Report Number
NTIS/03005981_a
Volume
GRA and I
Issue
GRA and I
Abstract
Disclosed is a method for making a composition for measuring the concentration of chlorinated aromatic compounds in aqueous fluids and an optical probe for use with said method. The composition comprises a hydrophobic polymer matrix, preferably polyamide, with a fluorescent indicator uniformly dispersed therein. The indicator fluoresces in the presence of the chlorinated aromatic compounds with an intensity dependent on the concentration of these compounds in the fluid of interest, such as 8-amino-2-naphthalene. The probe includes a hollow cylindrical housing that contains the composition in its distal end. The probe admits an aqueous fluid to the probe interior for exposure to the composition. An optical fiber transmits excitation light from a remote source to the composition while the indicator reacts with chlorinated aromatic compounds present in the fluid. The resulting fluorescence light signal is reflected to a second optical fiber that transmits the light to a spectrophotometer for analysis.
Keywords
Chlorinated Aromatic Hydrocarbons
;
Aqueous Solutions
;
Detection
;
Fluorescence
;
Optical Fibers
;
Spectrophotometry
;
Patent applications
;
EDB/400102
;
EDB/540320
Tags
IRIS
•
Naphthalene
Previous HERO references
Database Searches
Toxline
Combined data set
Excluded by electronic screening
Other
•
Naphthalene (2021 Evidence mapping publication)
Previous HERO references
Database Searches
Toxline
Combined data set
Excluded by electronic screening
Home
Learn about HERO
Using HERO
Search HERO
Projects in HERO
Risk Assessment
Transparency & Integrity