Specifications
The DelsaNano C measures particles as small as 6 Angstrom and as large as 7 micron with molecular weight as small as 267 Dalton in a concentration range from 10ppm to 40%* (w/v). It uses precision optics to avoid light intensity and coherence loss due to fiber optics collection. The utilization of both log-scale and linear-scale correlators makes broadest size range measurement possible.
This is the first instrument in the industry that measures zeta potential distribution of concentrated solutions using ELS. It uses the forward scattering through transparent electrode technology (FST) to measure zeta potential of particles in various suspension concentrations up to 40% depending on particle size. Because of the Brownian broadening of scattering spectrum at high scattering angles, the common practice in measuring concentrated samples using back scattering cannot be used in zeta potential measurement. The FST is the only known technology that can measure zeta potential of particles in concentrated suspensions.
This is the first in the industry that measures zeta potential of solid surfaces or films using ELS. Surface charge or zeta potential of bare, treated, or coated solid surfaces or film such as glass, silica, ceramics, etc. in liquid can be measured using DelsaNano C. A unique approach in DelsaNano C makes these measurements possible.