Laboratory Products
New Possibilities in the Solid Surface Characterisation of Biomaterial Samples
Dec 15 2010
Research in the field of biomaterial samples brings new challenges for the measurement of zeta potential. The sample size is usually small, with a sensitive surface and unpredictable stability upon exposure to an aqueous environment. The Adjustable Gap Cell of the SurPASS streaming potential analyser takes into account these special requirements.
Samples of 20 mm x 10 mm or even smaller are mounted without contacting the surface. Phenomena like swelling are easily compensated and, like other timedependent processes, even monitored during the measurement of zeta potential. By simply exchanging the measuring cell, the SurPASS can be used for the zeta
potential analysis of fibres and coarse powder samples, or for the non-destructive measurement of large and rigid materials like 300 mm semiconductor wafers. Anton Paar.
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