The new ZEN1010 high concentration zeta potential cell for the market leading
Zetasizer Nano particle characterization system from Malvern
Instruments enables measurement in samples of up to 40% w/v. The design,
which incorporates a reduced optical path length, can typically provide three
times the concentration measurement ability of standard cells for a particular
Suitable for measurement in aqueous media, the new cell takes just 150?l sample
in the measurement area. As a consequence of the reduced optical path and reduced
measurement volume area, there is less heat generation than in conventional
cells making the ZEN1010 highly suitable for delicate samples, including biological
materials such as proteins.
Although it operates just like a standard cell on the Zetasizer Nano, the ZEN1010
allows robust zeta potential measurements in highly concentrated samples. By
requiring less sample dilution, it supports improved maintenance of the pH and
chemical structure of the sample, for more directly relevant zeta potential
measurement. This is especially important in many colloidal materials, where
measuring the sample in its native state avoids the need for the often complicated
centrifugation and dilution procedures needed to maintain sample integrity.
While the ZEN1010 is designed to offer the maximum concentration zeta potential
measurement capability with a laser doppler electrophoresis technique, it also
offers optimum stability for lower concentration samples. Its minimal sample
volume requirements and small capillary are also beneficial for measuring samples
with high conductivity.
Compatible with the existing Zetasizer Nano system and accessory range, the
reusable high concentration zeta potential cell is easy to use.