Method for the substantial reduction of quenching effects in luminescence spectrometry
Abstract
Method for reducing quenching effects in analytical luminescence measurements. Two embodiments of the present invention are described which relate to a form of time resolution based on the amplitudes and phase shifts of modulated emission signals. In the first embodiment, the measured modulated emission signal is substantially independent of sample quenching at sufficiently high frequencies. In the second embodiment, the modulated amplitude and the phase shift between the emission signal and the excitation source are simultaneously measured. Using either method, the observed modulated amplitude may be reduced to its unquenched value. 3 figs.
- Inventors:
- Issue Date:
- Research Org.:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- OSTI Identifier:
- 7013923
- Patent Number(s):
- 6068005
- Assignee:
- TIC; ERA-14-001182; EDB-88-185197
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B08 - CLEANING B08B - CLEANING IN GENERAL
- DOE Contract Number:
- W-7405-ENG-36
- Resource Type:
- Patent
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; QUENCHING; REDUCTION; SPECTROMETERS; DESIGN; INVENTIONS; LUMINESCENCE; SPECTROSCOPY; CHEMICAL REACTIONS; MEASURING INSTRUMENTS; 400102* - Chemical & Spectral Procedures
Citation Formats
Demas, J N, Jones, W M, and Keller, R A. Method for the substantial reduction of quenching effects in luminescence spectrometry. United States: N. p., 1987.
Web.
Demas, J N, Jones, W M, & Keller, R A. Method for the substantial reduction of quenching effects in luminescence spectrometry. United States.
Demas, J N, Jones, W M, and Keller, R A. Fri .
"Method for the substantial reduction of quenching effects in luminescence spectrometry". United States.
@article{osti_7013923,
title = {Method for the substantial reduction of quenching effects in luminescence spectrometry},
author = {Demas, J N and Jones, W M and Keller, R A},
abstractNote = {Method for reducing quenching effects in analytical luminescence measurements. Two embodiments of the present invention are described which relate to a form of time resolution based on the amplitudes and phase shifts of modulated emission signals. In the first embodiment, the measured modulated emission signal is substantially independent of sample quenching at sufficiently high frequencies. In the second embodiment, the modulated amplitude and the phase shift between the emission signal and the excitation source are simultaneously measured. Using either method, the observed modulated amplitude may be reduced to its unquenched value. 3 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1987},
month = {6}
}
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