skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

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 between 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. 4 figs.

Inventors:
;
Issue Date:
OSTI Identifier:
7266214
Patent Number(s):
4803049 A
Application Number:
PPN: US 6-681487
Assignee:
Univ. of California, Berkeley, CA (United States) PTO; EDB-94-118381
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Resource Relation:
Patent File Date: 12 Dec 1984
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; MATERIALS; PH VALUE; MONITORS; DESIGN; OPERATION; DYES; FLUORESCENCE; MEASURING METHODS; LUMINESCENCE; MEASURING INSTRUMENTS; 440800* - Miscellaneous Instrumentation- (1990-)

Citation Formats

Hirschfeld, T.B., and Wang, F.T. pH-sensitive optrode. United States: N. p., 1989. Web.
Hirschfeld, T.B., & Wang, F.T. pH-sensitive optrode. United States.
Hirschfeld, T.B., and Wang, F.T. Tue . "pH-sensitive optrode". United States.
@article{osti_7266214,
title = {pH-sensitive optrode},
author = {Hirschfeld, T.B. and Wang, F.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 between 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. 4 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1989},
month = {2}
}