Ga. Krystev et al., THE BARYCENTRIC METHOD FOR THE DETERMINATION OF THE DIFFUSION-COEFFICIENT OF COLLOIDAL PARTICLES, Colloid journal of the Russian Academy of Sciences, 60(4), 1998, pp. 449-455
The barycentric method for studying the Brownian diffusion of colloida
l particles was proposed. This method can be applied to both transpare
nt and nontransparent dispersions and makes it possible to measure the
diffusion coefficient and volume density, as well as the size of coll
oidal particles without disturbing the state of a system. All these pa
rameters are determined using a sufficiently sensitive balance. The ne
w (non-Einstein) barycentric formula was obtained for the coefficient
of Brownian diffusion.