Our “Particle World 24” has just been published. Read about the characterisation of particles, powders, and pores of various materials in pure or dispersed form. New measurement possibilities and recommendations for their implementation, experiences in carrying out analyses and evaluation are presented on 32 pages.
A highlight is the technical article on the new BeNano instrument series: now with autotitrator and DLS microrheology option! The BeNano series is the latest generation of optical measuring instruments for the comprehensive characterisation of particles in the size range 0.3 nm to 15 µm. The flagship BeNano 180 Zeta Pro combines the methods of dynamic light scattering (DLS), electrophoretic light scattering (ELS) and static light scattering (SLS). This allows particle size, rheology parameters, zeta potential and molecular weight to be determined in one system. In the article starting on page 9, the new autotitrator for automatic, time-saving pH-dependent determination of the zeta potential is presented using a sample measurement with bovine serum albumin (BSA). In addition, the new microrheology option is clearly explained step by step and it is shown which statements can be derived with it about the viscoelastic properties of the materials to be examined.
