Raman spectroscopy crystallization analysis method

Details Raman spectroscopy crystallization analysis method Raman spectroscopy crystallization analysis method

2005-03-15

2005-03-15

Lauchman, Layla G. (Department: 2877)

Optics: measuring and testing

By dispersed light spectroscopy

With raman type light scattering

C356S302000, C436S004000

Reexamination Certificate

active

06867858

ABSTRACT:
A method of monitoring sample crystallization from a solution. The method includes the collection of multiple Raman spectra from a sample dissolved in a solvent as a function of time and under conditions promoting crystallization. Within each of the multiple Raman spectra, a first signal is identified corresponding to the sample associated with the solvent. A second signal corresponding to the sample in a microcrystallite state is also identified. Thereafter, the intensity of the multiple Raman spectra are measured for an increase relating to formation of the sample in a microcrystallite state. A method of monitoring sample crystallization from a solution as a function of turbidity is also disclosed. The method includes the collection of multiple Raman spectra from a sample dissolved in a solvent as a function of time under conditions promoting crystallization. A decrease in intensity is measured across the multiple Raman spectrum over time, the intensity decrease associated with macroscopic crystallization opacity. The decrease in intensity is finely correlated with the onset of macroscopic crystallization of the sample from the solvent.

REFERENCES:
patent: 6465255 (2002-10-01), Asay et al.

Affiliated with

Also associated with

Rating

Raman spectroscopy crystallization analysis method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Raman spectroscopy crystallization analysis method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Raman spectroscopy crystallization analysis method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3438986