Accession Number : ADD018228

Title :   Selective Metal Ion Detection Using a Photoluminescent Indicator Binding to a Macromolecule-Metal Ion Complex.

Descriptive Note : Patent, Filed 15 Mar 94, patented 13 Aug 96,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Thompson, Richard B ; Jones, Eric R

Report Date : 13 Aug 1996

Pagination or Media Count : 13

Abstract : The present invention is a process and apparatus for metal ion detection. The process of the invention has the steps of (1) disposing, in an analyte medium, a macromolecule suitable for selective complexation with the target metal ion species; (2) disposing, in the analyte medium, an appropriate photoluminescent indicator that will emit in a measurably different manner when bound to the metallomacromolecule complex, compared with its unbound state; (3) exciting the photoluminescent indicator species; and (4) monitoring the emission of the photoluminescent indicator species to detect changes in its emission. The apparatus of the invention has (I) a macromolecule suitable for selective complexation with the target metal ion species disposed in an analyte medium; (2) an appropriate photoluminescent indicator that will emit in a measurably different manner when bound to the metallomacromolecule complex, compared with its unbound state, also disposed in the analyte medium; (3) a source for exciting the photoluminescent indicator species; and (4) a detector for monitoring the emission of the photoluminescent indicator species to detect changes in its emission.

Descriptors :   *IONS, *METALS, *PHOTOLUMINESCENCE, *MACROMOLECULES, *INDICATORS, *COMPLEX IONS, EMISSION, DETECTORS, EXCITATION, TARGETS

Subject Categories : Inorganic Chemistry
      Physical Chemistry
      Atomic and Molecular Physics and Spectroscopy
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE