Optics: measuring and testing – By dispersed light spectroscopy – With raman type light scattering
Patent
1995-04-05
1997-04-15
Evans, F. L.
Optics: measuring and testing
By dispersed light spectroscopy
With raman type light scattering
G01J 344, G01N 2165
Patent
active
056215223
ABSTRACT:
The present invention is a chemical sensor including a polymer substrate capable of reversible adsorption of an analyte organic compound, a source of Raman excitation radiation, positioned for directing this Raman excitation radiation onto the substrate, thus generating a Raman signal, and a Raman signal detector, positioned for detecting this Raman signal. Another aspect of this invention is the sensing tip of such a sensor, including a polymer substrate capable of reversible adsorption of an analyte organic compound, focusing means for directing excitation radiation onto the polymer substrate to generate a Raman signal from the organic compound, and collection means, for transmitting this Raman signal to a detector. Another aspect of this invention is an array of sensing tips, each using a different polymer substrate selected for selective adsorption of an analyte species, coupled to an excitation radiation source and a detector.
REFERENCES:
patent: 5255067 (1993-10-01), Carrabba et al.
patent: 5400136 (1995-03-01), Vo-Dinh
D.S. Ballantine, Jr. et al., Analytical Chemistry 58 3058-66 (1986).
R.A. McGill et al., "Choosing Polymer Coatings for Chemical Sensors", Chech 24 (9) 27-37.
S.D. Schwab et al., "Versatile, Efficient Raman Sampling with Fiber Optics", Analytical Chemistry 58 2199-2204 (1984).
Aggarwal Ishwar
Bilodeau Thomas
Ewing Kenneth J.
Nau Gregory
Evans F. L.
Karasek John J.
McDonnell Thomas E.
The United States of America as represented by the Secretary of
LandOfFree
Fiber optic probe for determination of trace levels of organic p does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fiber optic probe for determination of trace levels of organic p, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fiber optic probe for determination of trace levels of organic p will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-365145