Replacing the needle When to replace the needle The needle will need to be replaced periodically when it can no longer be cleaned sufficiently. Click on the General Tools category 4. Common dialogue for size and zeta trend measurements. The latest version of Zetasizer Software alpha is currently unknown. A dialogue will appear allowing the new measurement file to be named and specify where it will be saved. How to try out the research software Provided you acknowledge that this is not something to confront an inexperienced novice light scatterer, there is a way to test out and experience these advanced research features within the Zetasizer software. In addition, however, the pKa, drag ratio and maximum surface charge density corresponding to that ionic species must be supplied.
The parameters used by the active selection are displayed in the property grid display. Using this manual Read the Health and Safety information in Chapter 3 before using the instrument. Operation requires the use of a feature key. A dialogue will appear allowing selection of a measurement file. This cuvette is typically used for samples where cross-contamination might be an issue. First of all a laser + is used to provide a light source to illuminate the particles within the sample;. A confirmation dialog will show up.
Identify the user maintenance procedures. Understanding of colloidal stability and control or adjustment of performance parameters helps guide product development. Explain how the instrument should be used to make a measurement. If the icon is still greyed out, contact Malvern Instruments. By selecting either the Material, Solvent or Standard tab and selecting the button these properties can be defined.
For instance you can see that for Zetasizer Software 7. Ensure all these are met before the instrument is delivered. While opinions express are generally those of the author, some parts may have been modified by our editorial team. When that is completed, start the software, select Zetasizer Nano, open a new file and you are ready to begin taking measurements. J Accessory output A 12v output supply is provided on the rear panel to connect to any Malvern supplied accessory that requires an external voltage source.
This is a dimensionless parameter, and the Smoluchowski and Hückel models are limiting cases of large and small values of Ka. This produces a fluctuating intensity signal where the rate of fluctuation is proportional to the speed of the particles. The name entered here should be a description of the sample being measured. Please open if you want to read more on Zetasizer Software 6. First a few words of caution: molecular weight or Mw measurements in general are not easy, require time, good sample preparation skills as well as patience.
For low conductivity samples each cell can be used for hundreds of measurements. With knowledge of the sample configuration it is possible to improve the result of the measurement by adding the value that most closely corresponds to the probable sample shape;. Do not place cables in positions where they are likely to become wet. Load the plate into the instrument: If the plate holder is not in the ejected position, click Eject on the toolbar. Smoluchowski and Hückel Figure 4 shows which Sample options are available if Smoluchowski is chosen as the electrokinetic model.
This page only contains detailed info on how to uninstall Zetasizer Software 6. Note that you might receive a notification for admin rights. The plate holder withdraws into the instrument and the measurement process begins. Items which end with a row of dots. Before disposal of the optical unit, the laser should be disabled in such a manner as to make it impossible for it to be powered up. However, this minimum volume depends on the actual cell type and it is easier to ensure a certain depth of the sample in the cell.
Yet they can be accessed to those willing to do so. . Please see the size description for details about Temperature, Cell type, Run duration and Attenuator. Geographical user distribution Software Application Disclaimer This page is not a piece of advice to uninstall Zetasizer Software 6. Scroll the list of programs until you locate Zetasizer Software 7. N o t e Viscosity is temperature dependent. Static light scattering can be cumbersome.
Report pages allows selection of both Malvern created and customised re- ports. If you are new to the Malvern it might be best to familiarize yourself first with the rapid, user-friendly, and quite forgiving technique of dynamic light scattering. The Y1 parameter column is used to select the axis on the left of the graph and Y2, the axis on the right. This volume distribution can also be further converted to a number distribution. Click Next to start the cleanup.
Zetasizer Software alpha has not been rated by our users yet. Only the supervisor or a Malvern representative should attempt to change the fuse. While opinions expressed are generally those of the author, some parts may have been modified by our editorial team. However, due to Malvern Instruments policy of continual product development we are unable to guarantee the accuracy of this, or any other document after the date of publication. The setup package generally installs about 42 files and is usually about 534. This text simply contains detailed info on how to remove Zetasizer Software 7. Rinse inlet filters The two rinse inlet filters are of microporous structure to prevent foreign particles entering the system and causing inaccurate measurements.