Patent ID: 7800753

Claim:
A Raman and native fluorescence method of providing a chemical analysis of a sample, comprising: (a) supplying a sample to be analyzed; (b) applying ultraviolet excitation radiation from a source directly or indirectly onto the sample to produce Raman and native fluorescence emission radiation; (c) receiving emission radiation, directly or indirectly, from the sample at at least one first spectral filter and at at least one second spectral filter which are capable of passing first and second selected ranges of wavelengths of the emission radiation along first and second optical paths; (d) measuring an amount of the first selected emission radiation present along the first optical path using a first detector located directly or indirectly along the first optical path; (e) measuring an amount of the second selected emission radiation present along the second optical path using a second detector located directly or indirectly along the second optical path; (f) correlating information concerning the amount of the first and second selected emission radiations measured by the first and second detectors with data associated with one or more chemical compounds of interest to provide at least a partial chemical analysis of the sample, (g) wherein a selected one of the first detector or the second detector comprises a detector of Raman emission radiation and the other of the first and second detectors comprises a detector of native fluorescence emission radiation.