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}
}