Method and apparatus for obtaining fluorescence data

Details Method and apparatus for obtaining fluorescence data Method and apparatus for obtaining fluorescence data

1999-09-20

2000-12-26

Evans, F. L.

Optics: measuring and testing

By dispersed light spectroscopy

With sample excitation

356 73, 356417, 2504581, 2504611, G01N 2164

Patent

active

061668044

ABSTRACT:
In an exemplary embodiment, the apparatus includes an electromagnetic radiation source, an optical analyzer, and a fiber optic bundle. The fiber optic bundle has an excitation fiber in optical communication with the electromagnetic radiation source and a plurality of emission fibers in optical communication with the optical analyzer. The optical analyzer can have multiple channels, including a fluorescence-emission channel in optical communication with the emission fibers. Optionally, the fiber optic bundle can further contain at least one reflection fiber in optical communication with an absorbance/reflectance channel. In addition to detecting Fries product in formed polycarbonate materials, the method and apparatus can also be utilized to directly determine the concentration of a target species in parallel polycarbonate reactor systems.

REFERENCES:
patent: 5822072 (1998-10-01), Dai et al.
patent: 5974211 (1999-10-01), Slater
patent: 6008889 (1998-10-01), Zeng et al.
Fuchs et al: "Combined Fluorescence and Reflectance Spectroscopy: In Vivo Assessment of Oral Cavity Epithelial Neoplasia", Lasers and Electro-Optics, 1998, CLEO 98. Technical Digest.Conference held on May 3-8 1998, pp. 306-307.
Spatially resolved analyte mapping with time-of-flight optical sensors, Radislav A. Potyrailo and Gary M. Hieftje, Trends in Analytical Chemistry, vol. 17, No. 10, 1998, pp. 593-604.

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