Optics: measuring and testing – By dispersed light spectroscopy
Reexamination Certificate
2007-02-26
2008-12-30
Evans, F. L (Department: 2877)
Optics: measuring and testing
By dispersed light spectroscopy
C356S301000, C356S328000
Reexamination Certificate
active
07471386
ABSTRACT:
The disclosure relates generally to methods and apparatus for using a fiber array spectral translator-based (“FAST”) spectroscopic system for performing spectral unmixing of a mixture containing multiple polymorphs. In an embodiment, a first spectrum of a mixture containing polymorphs of a compound is obtained using a photon detector and a fiber array spectral translator having plural fibers. A set of second spectra is provided where each spectrum of the set of second spectra may be representative of a different polymorph of the compound. The first spectrum and the set of second spectra may be compared, and based on the comparison, the presence of one or more polymorphs in the mixture may be determined.
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Neiss Jason H.
Schweitzer Robert
Treado Patrick J.
ChemImage Corporation
Duane Morris LLP
Evans F. L
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