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Title: pH-sensitive optrode

Abstract

An apparatus is provided for remotely monitoring pH. A support material is provided on which organic dye molecules are covalently attached at a surface density falling within a predetermined range. The pH dependent fluorescence response of the bound organic dye molecules depends critically on surface density of the organic dye molecules bound to the support material and the nature of the covalent linkage betwen the organic dye molecules and the support material. The invention is operated by contacting the support material on which the organic dye is attached with the fluid whose pH is to be determined. When in contact, the organic dye on the support material is illuminated so that it is caused to fluoresce. The intensity of organic dye fluorescence is then related to pH.

Inventors:
 [1];  [2]
  1. (Livermore, CA)
  2. (Danville, CA)
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
866841
Patent Number(s):
4803049
Assignee:
Regents of University of California (Berkeley, CA) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
ph-sensitive; optrode; apparatus; provided; remotely; monitoring; ph; support; material; organic; dye; molecules; covalently; attached; surface; density; falling; predetermined; range; dependent; fluorescence; response; bound; depends; critically; nature; covalent; linkage; betwen; operated; contacting; fluid; determined; contact; illuminated; caused; fluoresce; intensity; related; surface density; predetermined range; support material; organic dye; dye molecules; remotely monitoring; covalently attached; /422/250/356/436/600/

Citation Formats

Hirschfeld, Tomas B., and Wang, Francis T. pH-sensitive optrode. United States: N. p., 1989. Web.
Hirschfeld, Tomas B., & Wang, Francis T. pH-sensitive optrode. United States.
Hirschfeld, Tomas B., and Wang, Francis T. Sun . "pH-sensitive optrode". United States. https://www.osti.gov/servlets/purl/866841.
@article{osti_866841,
title = {pH-sensitive optrode},
author = {Hirschfeld, Tomas B. and Wang, Francis T.},
abstractNote = {An apparatus is provided for remotely monitoring pH. A support material is provided on which organic dye molecules are covalently attached at a surface density falling within a predetermined range. The pH dependent fluorescence response of the bound organic dye molecules depends critically on surface density of the organic dye molecules bound to the support material and the nature of the covalent linkage betwen the organic dye molecules and the support material. The invention is operated by contacting the support material on which the organic dye is attached with the fluid whose pH is to be determined. When in contact, the organic dye on the support material is illuminated so that it is caused to fluoresce. The intensity of organic dye fluorescence is then related to pH.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1989},
month = {1}
}

Patent:

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