Partical Metrix - ZETA-check
Partical Metrix – ZETA-check
Particle interface potentials like the oscillating zeta streaming potential measured in the ZETA-check, represent the level of electrostatic repulsion between particles. The potential is generated by ionic end groups on particles and macro-molecules, respectively. With ZETA-check, the state of the actual charge of dispersions and macromolecular solutions is obtained within seconds. Solutions and dispersions from 0.3 nm up to 100 µm particle size qualify for measurement. The typical concentration is between 0.01 and 40 vol%. [media-downloader media_id="1166" texts="Click here for details"]
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Partical Metrix – ZetaView
First principal electrophoresis zeta potential and Brownian diffusion size With ZetaView® individual particle tracking, classical micro-electrophoresis and Brownian motion have a modern analysis tool. Auto-alignment and auto-focussing make the “Seeing is Believing” principle alive. Highly resolved zeta potential- and size- histograms as well as profiles are derived from thousands of particles in a routine way. In addition, low particle concentrations can be determined. A separate model with a short wavelength laser is available for discrimination of fluorescent particles. The visualisation in general contributes to analysis certainty and to new discoveries. [media-downloader media_id="1167" texts="Click here for details"]
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Particle Metrix Stabino zetameter
Particle Metrix Stabino zetameter
Rapid charge titrations for stability analysis of colloids and dispersions enhance the efficiency of formulation and particle interface analysis. The Particle Interface Potential of particles is measured as streaming / zeta potential and represents the degree of electrostatic repulsion between particles. It reacts to pH, conductivity and polyelectrolyte surrounding, respectively. A charge titration with the Stabino® specifies which parameters require special attention. The isoelectric point can be titrated within short time, gathering information on charge density and stable zones, whilst pH, conductivity and temperature are monitored simultaneously. Particle Charge Mapping The intuitive tablet PC controlled automatic titration of the Stabino® opens the way to particle charge finger-printing of colloids and dispersions. The isoelectric point is reached quickly, gathering information on charge density and stable zones, whilst pH, conductivity and temperature are measured simultaneously. [media-downloader media_id="1168" texts="Click here for details"]  
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