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- Static_light_scattering abstract "Static light scattering is a technique in physical chemistry that measures the intensity of the scattered light to obtain the average molecular weight Mw of a macromolecule like a polymer or a protein in solution. Measurement of the scattering intensity at many angles allows calculation of the root mean square radius, also called the radius of gyration Rg. By measuring the scattering intensity for many samples of various concentrations, the second virial coefficient A2, can be calculated.Static light scattering is also commonly utilized to determine the size of particle suspensions in the sub-μm and supra-μm ranges, via the Lorenz-Mie(see Mie scattering) and Fraunhofer diffraction formalisms, respectively.For static light scattering experiments, a high intensity monochromatic light, usually a laser, is launched in a solution containing the macromolecules. One or many detectors are used to measure the scattering intensity at one or many angles. The angular dependence is required to obtain accurate measurements of both molar mass and size for all macromolecules of radius above 1-2% the incident wavelength. Hence simultaneous measurements at several angles relative to the direction of incident light, known as multi-angle light scattering (MALS) or multi-angle laser light scattering (MALLS), is generally regarded as the standard implementation of static light scattering. Additional details on the history and theory of MALS may be found in multiangle light scattering.To measure the average molecular weight directly without calibration from the light scattering intensity, the laser intensity, the quantum efficiency of the detector, and the full scattering volume and solid angle of the detector needs to be known. Since this is impractical, all commercial instruments are calibrated using a strong, known scatterer like toluene since the Rayleigh Ratio of toluene and a few other solvents were measured using an absolute light scattering instrument.".
- Static_light_scattering wikiPageID "11096735".
- Static_light_scattering wikiPageRevisionID "592022640".
- Static_light_scattering hasPhotoCollection Static_light_scattering.
- Static_light_scattering subject Category:Physical_chemistry.
- Static_light_scattering subject Category:Polymer_chemistry.
- Static_light_scattering subject Category:Polymer_physics.
- Static_light_scattering subject Category:Scattering.
- Static_light_scattering subject Category:Scattering,_absorption_and_radiative_transfer_(optics).
- Static_light_scattering comment "Static light scattering is a technique in physical chemistry that measures the intensity of the scattered light to obtain the average molecular weight Mw of a macromolecule like a polymer or a protein in solution. Measurement of the scattering intensity at many angles allows calculation of the root mean square radius, also called the radius of gyration Rg.".
- Static_light_scattering label "Dispersión estática de luz".
- Static_light_scattering label "Static light scattering".
- Static_light_scattering sameAs Dispersión_estática_de_luz.
- Static_light_scattering sameAs m.02q_xkh.
- Static_light_scattering sameAs Q7604173.
- Static_light_scattering sameAs Q7604173.
- Static_light_scattering wasDerivedFrom Static_light_scattering?oldid=592022640.
- Static_light_scattering isPrimaryTopicOf Static_light_scattering.