Tracer Particles for Diffusing Wave Spectroscopy

Transparent samples do not scatter light and thus they would usually not be suited for Diffusing Wave Spectroscopy. However, in most cases one can simply add tracer particles to obtain a scattering sample well suited for both the DWS RheoLab and ResearchLab.  Scattering is most efficient, when the size of the particle is close to the wavelength of the scattered light.  Furthermore the particles should be monodisperse and spherical. LS Instrument can now provide perfectly monodisperese spherical Latex particles with a diameter of 400 nm suited for most aqueous samples as well as a wide range of other systems.

Specifications DWS Tracer Particles:

Latex PS particles in water, radius: 200nm, polydispersity <  5%, volume fraction 12.9%, stabilized with sulfate groups, quantity: 20 ml, refractive index: 1.59

Price: 255 €