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Following demand from our extensive customer base and in line with our policy of continuous improvement, we have decided to review the specifications of the Zetasizer product line. This extensive review using a range of samples, has given us the flexibility to redefine the specification limits on the Zetasizer. As would be expected from a light scattering supplier with high integrity, we have ensured that these updated performance specifications are supported by measurements on real samples.

To do this we have measured samples to test the limits of what can be achieved by the Zetasizer systems with careful sample preparation and measurement design. In line with Malvern’s policy of system testing, we record data to demonstrate the validity of the specifications and a "summary of the key measurements" can be found by downloading this link.

The new specifications provide the means to assess whether a particular Zetasizer will fit your application requirements; however these are never a substitute for measurement of your samples on a system to determine its suitability.

For the main changes in specifications of the Zetasizer Nano, we would like to draw your attention to the list below:

Parameter

New specification*

Maximum size range

0.3nm to 10µm (dia.)

Peak mode size range

0.6nm to 8.9 microns (dia.)

Estimated Molecular Weight range

342Da to 2*107Da 

Absolute Molecular Weight range

980Da to 2*107Da

Zetapotenzial

> +/- 500mV

Mobility

> +/- 20µm.cm/V.s

Particle size range for zeta potential measurement

3.8nm to 100µm (dia.)

Lower temperature limit

0°C

For details of the specifications for a particular member of the Zetasizer range, please see the relevant brochure or specification page of this web site:

Product

Specification page

New brochure

Zetasizer Nano S90

Click here to go to specification page

Click here to download new brochure

Zetasizer Nano ZS90

Click here to go to specification page

Click here to download new brochure

Zetasizer Nano ZS

Click here to go to specification page

Click here to download new brochure

Zetasizer µV

Click here to go to specification page

Click here to download new brochure

Zetasizer APS

Click here to go to specification page

Click here to download new brochure

*Please note that these specifications are sample dependent, but show the capabilities of the system.

Systems:

Zetasizer Nano - The ultimate versatile system Characterize the size, distribution, zeta potential and molecular weight of colloids, nanoparticles and biomolecules. Automate changes in conditions such as pH and conductivity using the optional autotitrator.

Zetasizer APS - DLS Plate Sampling Technology for unparalleled data quality and automation A robust, simple to operate, Dynamic Light Scattering system that automates measurements from samples in industry standard 96- or 384-well plates to add the power of advanced light scattering analysis to your laboratory.

Zetasizer µV - Dedicated to the size and MW measurement of proteins by both batch and SEC-LS Measure as low a volume as 2µL. Combined with the ultimate sensitivity, this enables the measurement of 40 nanograms of a 66kDa protein.

 
 
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Take a look at the Zetasizer systems features to find out which is best to meet your needs.