Radiant energy – Luminophor irradiation
Patent
1994-08-17
1996-03-12
Fields, Carolyn E.
Radiant energy
Luminophor irradiation
2504591, 356 73, 356301, 356317, 356318, G01N 2164, G01N 2165
Patent
active
054988756
ABSTRACT:
A method and apparatus determines the analyte content of a sample by generating first and second input signals and directing the input signals to the sample. The input signals differ in wavelength by at least 3 nanometers. Due to the interaction between the input signals and the sample, first and second output signals are generated. Each output signal comprises a resonant signal whose peak wavelength is substantially independent of the wavelength of the respective input signal, and a non-resonant output signal whose peak wavelength is dependent upon the wavelength of respective input signal. A detector is used to detect the two output signals, and by distinguishing the resonant output signals from the non-resonant output signals, data about the analyte content of the sample is determined. Principal components regression analysis or multivariate quantitative analysis can be applied to the output signals, for the purpose of distinguishing between the resonant and non-resonant signals. The method and apparatus can also distinguish resonant output signals from each other, and non-resonant output signals from each other.
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Obremski Robert J.
Silzel John W.
Beckman Instruments Inc.
Fields Carolyn E.
Hampson Gary T.
May William H.
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