Title:
METHOD TO MEASURE MEAN SQUARE RADIUS OF PARTICLES IN SAMPLE FRACTION COMPRISED OF PREDOMINANTLY MONODISPERSE PARTICLES AND METHOD TO DETERMINE DIMENSIONS OF MONODISPERSE PARTICLES OF KNOWN SHAPE IN SUSPENSION, BY MULTIANGLE LIGHT SCATTERING (MALS)
Document Type and Number:
Japanese Patent JP2016024199
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a method by which small particles in solution, of various structures and of sizes up to several hundred nanometers can be measured by light scattering means.SOLUTION: An inventive technique is described, permitting the traditional Rayleigh-Gans approximation to be extended, allowing thereby measurement of the mean square radii of particles over a greater size range. Such determinations obviate the need to fit the collected data to a particular closed form model of which, in any event, only a few exist. The new method is particularly important for determining structural features of irregular particles whose scattering depends on their orientation with respect to the direction of the incident illumination.SELECTED DRAWING: Figure 2
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Inventors:
PHILIP J WAITE
Application Number:
JP2015142915A
Publication Date:
February 08, 2016
Filing Date:
July 17, 2015
Export Citation:
Assignee:
WYATT TECHNOLOGY
International Classes:
G01N15/02
Attorney, Agent or Firm:
Fukami patent office