Method and apparatus for characterizing microparticles and measu

Optics: measuring and testing – By particle light scattering – With photocell detection

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

364555, G01N 2100

Patent

active

045417199

ABSTRACT:
A process and apparatus is disclosed for characterizing an ensemble of microparticles and monitoring their response to environmental factors such as chemically and biologically active agents. The apparatus permits the very accurate measurement of light or radiation intensity scattered by the microparticles at two well-defined scattering angles with respect to the direction of the incident beam. This is achieved by measuring the scattered radiation at two sets of scattering angles each subtending the two defined angles, processing the detected intensities with a computer means to remove spurious data arising from artifacts in the scattering ensemble, and then functionally averaging the so-processed intensities of each set to yield a mean value for the scattered intensity at each of the two defined angles. Monitoring these two values before and after the addition of an environmental factor permits the calculation of a quantitative ensemble response to said environment. Applications include the quantitative determination of bacterial response to antimicrobials, determination of antigen or antibody concentrations in various fluids, detection of chemical residues in foods and other materials, identification or characterization of unknown particles ensembles by comparison with known scattering values, and detection of bactiurea. Appropriate processes and protocols are disclosed.

REFERENCES:
patent: 3928140 (1975-12-01), Wyatt et al.
patent: 4070113 (1978-01-01), Frazer et al.
patent: 4101383 (1978-07-01), Wyatt et al.
patent: 4174952 (1979-11-01), Cannell et al.
patent: 4204837 (1980-05-01), Sternberg et al.
patent: 4314347 (1982-02-01), Stokely

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method and apparatus for characterizing microparticles and measu does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for characterizing microparticles and measu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for characterizing microparticles and measu will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-367738

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.