NIR spectroscopy method for analyzing chemical process...

Details NIR spectroscopy method for analyzing chemical process... NIR spectroscopy method for analyzing chemical process...

2006-06-27

2006-06-27

Porta, David P. (Department: 2884)

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

C250S339090

Reexamination Certificate

active

07067811

ABSTRACT:
A method is described for providing rapid on-line analyses of chemical compositions such as chemical process streams, utilizing near-infrared (NIR) spectroscopy in combination with chemometrics. In the method, for each type of analysis to be conducted, a database is provided by analyzing a series of samples using standard laboratory analytical procedures, utilizing the results as reference values to establish quantitative calibration models from NIR spectroscopy using chemometric techniques and storing this information in a computer database. An NIR spectroscopic system is also provided comprising a transflectance or a transmittance probe coupled via fiber-optic cables to a stable white light source and a spectrograph. The probe is inserted into a test sample or chemical process stream to be analyzed, a stable white light of selected wavelength range is beamed to the probe and the spectra obtained on the spectrograph are recorded. Finally the spectra obtained are correlated to the reference data stored in the computer to obtain a rapid measurement of the analysis desired.

REFERENCES:
patent: 4843247 (1989-06-01), Yamazoe et al.
patent: 4866983 (1989-09-01), Vinegar et al.
patent: 5532487 (1996-07-01), Brearley et al.
patent: 5672873 (1997-09-01), Yamazoe
patent: 5712165 (1998-01-01), Alvarez et al.
patent: 5742064 (1998-04-01), Infante
patent: 6087662 (2000-07-01), Wilt et al.
patent: 6281489 (2001-08-01), Tubel et al.
patent: 6300633 (2001-10-01), Hunt et al.
patent: 6507401 (2003-01-01), Turner et al.
patent: 2002/0139929 (2002-10-01), Mullins et al.
patent: WO 97/14953 (1997-04-01), None

Affiliated with

Also associated with

Rating

NIR spectroscopy method for analyzing chemical process... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with NIR spectroscopy method for analyzing chemical process..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and NIR spectroscopy method for analyzing chemical process... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3673763