Chemical analysis of ions incorporated in lattices using coherent excitation sources
AssigneeWisconsin Alumni Research Foundation
InventorJohn C. Wright
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Abstract
Method for analysis of cations and anions in trace amounts in solution by excitation with a tuneable laser of a precipitate or a coprecipitate formed of the unknown ions in the presence of ions which fluoresce upon excitation by the dye laser and which experience change in energy levels in the presence of the unknown ion in the crystalline lattice.
Claims15
A method for analysis of cations and anions comprising incorporating said ions in a crystalline lattice containing ions of a probe which fluoresces upon excitation and which experiences a modification in energy level when said ions to be analyzed differ from that of the probe, exciting the probe ion with a tuneable narrow-band source of coherent light, and monitoring the fluorescence from the excited probe ion to analyze for sites in the spectrum to determine presence of the unknown cations or anions and the intensity of fluorescence thereof for determining the amount of said unknown anions or cations.
Dependencies are inferred from the claim text.