Surface Analysis
Surface analysis with Anton Paar’s high-end measuring instrument: The electrokinetic analyzer enables the fully automatic determination of the zeta potential on macroscopic solid surfaces. Surface analysis system: repeatable, reproducible, reliable.
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Anton Paar's electrokinetic analyzer investigates the zeta potential of macroscopic solids based on a streaming ...
Surface analysis: Knowledge of surface properties is important for the successful development of new materials in all technical and biological fields. A new product’s surface chemistry and the adaptation of this using surface treatments is often essential for its use. Besides the characterization of surface chemistry on solids, it is also useful to gain insights into its interaction with the natural or near-natural environment to allow rapid and successful development of products with new material properties.
The surface analysis device from Anton Paar provides essential information about surface charge: zeta potential. The electrokinetic analyzer has a wide range of applications, ranging from plastics, technical fibers, textiles, filter media and investigations into biomaterials and semiconductor substrates.
Surface analysis in next to no time:
- User-friendly user interface
- High degree of automation
- Rapid, meaningful and precise results
- Sophisticated measuring cell design
- Minimum work for sample preparation
Call our specialists for more information about surface analysis at Anton Paar.
Anton Paar: New possibilities in surface analysis
Membranes and Filters
Biomaterials
Polymers
Textile
Minerals
Microfluidics
Theory
Fibers
Proteins
Membranes and Filters
Biomaterials
Polymers
Textile
Minerals
Microfluidics
Theory
Fibers
L. L. Yang, D. Ge, H. Wei, F. He, X. D. He, Morphology and characterization of ITO-Ag-ITO films on fibers by layer-by-layer method, Appl. Surf. Sci. 255 (2009) 8197-8201
Proteins
Zeta potential for solid surface analysis
In 1905 Austrian-Polish scientist Marjan von Smoluchowski introduced the fundamental equations that correlate electrokinetic effects such as electrophoretic mobility, electro-osmotic flow, and streaming potential with the zeta potential at the solid/liquid interface.
While the zeta potential received attention for the characterization of colloidal dispersions in conjunction with particle size measurement in the middle of the last century, a commercial instrument for zeta potential analysis of macroscopic solid surfaces was not available until 1990.
In 1986 Prof. Hans-Jörg Jacobasch and coworkers at the Institute of Polymer Technology in Dresden, Germany (IPF, today’s Leibniz Institute of Polymer Research) submitted a patent for a “Method for Determining the Zeta Potential of Solid Materials”. The scientific cooperation of IPF with Karl-Franzens University Graz enabled the link to Anton Paar and the start of a long-living collaboration.
The first EKA Electro Kinetic Analyzer was introduced in 1990 and is still in use at Yale University (New Haven, CT, USA). Ten years later the EKA was released in the new corporate design, featuring improved technology and a Microsoft Windows based operating software.
Once again the collaboration with IPF started the development of EKA’s successor, the SurPASS instrument. Besides becoming a state-of-the-art zeta potential analyzer for various kinds of solid materials, SurPASS is the first instrument ever to perform streaming current measurement. This important feature gives access to conductive sample measurement and increases the reliability of zeta potential information for solid surfaces.
SurPASS paves the way for the zeta potential in solid surface analysis – from a scientific toy to a source of valuable information for industrial applications.
