Download Software Malvern Zetasizer Software Manual
Note Viscosity is temperature dependent. The Malvern defined dispersants include a built in viscosity calculation that determines the correct viscosity of the dispersant at any sample temperature. • Chapter 8 Using SOPs Sample - General Options Mark-Houwink parameters. Selecting the Define button displays the Mark-Houwink parameters window. This allows the Mark-Houwink parameters to be entered to enable a molecular weight to be calculated based on the dynamic light scattering data. • Using SOPs Chapter 8 viscosity is the same as the dispersant viscosity is usually valid.
View and Download Malvern Zetasizer uV user manual online. Chapter 3 Navigating the software The Malvern Zetasizer software controls the system during a. Software downloads. To find the latest Malvern Panalytical Software or user manuals simply select your product from. Zetasizer Ultra Zetasizer Pro Zetasizer Nano.
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With Manual selected the measurement will use the user defined settings Shape correction model This option allows selection of the shape correction model used for the measurement. • Using SOPs Chapter 8 These systematic variations can occur for a few reasons; possibly thermal drifting of the sample, poorly mixed sample, or instrument and laser stabilisation after initial switch on.
• Using SOPs Chapter 8 The software will automatically determine the measurement conditions for the cell type selected, i.e. Cell position for size cells and applied voltage for the zeta potential cells.
Care should be taken when removing the cells if a measurement has been performed at high temperatures. • Introducing the Zetasizer Nano Chapter 2 ill 8502 Cell area lid – Press the cell access button to open the lid, the lid will slowly raise allowing access to the cell holder. On opening, two safety interlocks are activated.
Refer to the identification table in the Introducing the Zetasizer Nano chapter. Cells and Cuvettes A range of cells and cuvettes are available to use with the Zetasizer instrument.
The parameter value displayed is taken from the selected measurement record. Selecting elements When selecting elements: To select one element, click on it. To select multiple elements, hold down the Shift or Ctrl key and click the . • Report designer Chapter 10 Aligning and sizing elements Select two or more elements and use the following options of the Layout toolbar or menu to align/size them: Button Function Button Function Layout-Align-Align left Layout-Make same width Layout-Align-Align right Layout-Make same height Layout-Align-Align top Layout-Make same size Layout-Align-Align bottom. • Remember if the custom report is to be printed then a Page version must also be created. Note New reports must be saved to the My Documents Malvern instru- ments Zetasizer Reports en-US (or ja-JP for Japanese) directory to be viewed in Records view.
Non-polar or low polarity dispersants are defined as those with a dielectric . • Sample Preparation Chapter 5 Count rate meter After preparing the sample, the count rate can be checked by using the count rate meter. Selecting Tools-Count rate meter will display the following window. The Count rate is displayed in kcps (kilo counts per second), and enables the sample quality and concentration to be checked without having to start a measurement.
• Using SOPs Chapter 8 The software will automatically determine the measurement conditions for the cell type selected, i.e. Cell position for size cells and applied voltage for the zeta potential cells. The Default selection shown will be appropriate to the measurement type selected - for a size measurement, the cell shown is the Disposable sizing cuvette. • Chapter 8 Using SOPs Choices are as indicated below: 175° Backscatter performs a “standard” measurement at an angle of 175° 12.8° Forward-scatter performs a measurement at an angle of 12.8° Dual-angle performs a measurement at both angles - this measurement is . • Using SOPs Chapter 8 Partial Results If it is likely that a measurement will not produce a correlation function that can be analysed - for example, measurement of a surfactant solution at lower than the critical micelle concentration - then the data collected can still be saved by selecting the Allow results to be saved containing correlation data only check box within the Partial Results area. • Chapter 8 Using SOPs Measurement - Advanced The Advanced window contains functions to alter the cell and attenuator position settings. For normal operations both will be at the default setting.
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Alter the settings as required and press OK. • Chapter 7 Measurement file window - Workspaces Parameters can be added or removed from this list by using the Add and Remove keys Change the order in which the parameters are displayed by selecting a parameter, and pressing the Move up or Move Down buttons.
The above is a very simplistic explanation. A more detailed explanation can be found in zeta potential theory chapter.
• Table of Contents Zetasizer Nano Zeta potential theory.13-1 Introduction. • Part 1 - Instrument guide. • Introduction to this manual Introduction This manual covers the operation of the Zetasizer Nano particle characterisation system. The instrument measures the size of particles contained within a sample, presenting data according to the user’s needs.
Results The results section gives four pieces of information: Molecular weight . Revit 2017 crack xforce. • Records and Reports - Viewing the Results Chapter 4 Zeta potential measurements - standard report The standard report for zeta potential measurements is Zeta potential (M).
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• The Macro used can be changed by selecting; this will open the window above. Note The Macros available will be supplied by Malvern. Inject Titrant To add a titrant, select the Inject titrant icon. This will add a Titrant action into the playlist, with the properties displayed alongside. • Chapter 9 Advanced features A pause may be required to allow for thermal equilibration, or to allow a titrant to be delivered and dispersed into the sample before proceeding. Set temperature To add a temperature change or setting between each playlist action, select the Set temperature icon. • Advanced features Chapter 9 Go to pH To adjust the pH value between two playlist actions, select the Go to pH icon.
To define a new material, press the Add. Button to display the Material Properties window. • Chapter 8 Using SOPs Sample - Dispersant The Zetasizer software requires certain information about the physical properties of the dispersant that is used in the sample that is to be measured. Selecting the Sample - Dispersant window and pressing the button, displays the Dispersants properties manager where these properties can be defined. • Propanol 25C. Note Viscosity is temperature dependent.
Why do we use it? A wide range of materials exist as molecules or particles that can be characterised by dynamic light scattering. • Chapter 2 Introducing the Zetasizer Nano A potential exists between the particle surface and the dispersing liquid which var- ies according to the distance from the particle surface – this potential at the slipping plane is called the zeta potential. Zeta potential is measured using a combination of the measurement techniques: Electrophoresis and Laser Doppler Velocimetry, sometimes called Laser Doppler Electrophoresis. • This is a calculation using a known molecular formula and applying the values from the periodic table. With the Zetasizer Nano series of instruments the molecular weight can now be determined by use of Static Light Scattering (SLS) measurement techniques.
The database is used for the calculation of Complex solvents; generally necessary when performing measurements involving proteins. • Advanced features Chapter 9 Note The Additive effect on both viscosity and refractive index is determined using 3rd order polynomial fits of data compiled in the “65th Edition of the CRC Handbook for Chemistry & Physics”. Building a Complex solvent To generate a Complex solvent, a few sample parameters have to be entered into the builder window. • A dispersant, or solvent, can be deleted by selecting the dispersant from the list and pressing the Delete. Note that it is not possible to modify or delete any dispersants or solvents that were specified by Malvern. Page 9-4 MAN 0317.
The appearance choices are shown below, for each one an anti-aliasing view is also available. Standard Style 1 Style 2 Style 3 Results This window contains a check box that will allow measurements results to be saved. • Advanced features Chapter 9 Instrument type This window provides the option to select which instrument type is currently in use. The software remembers the selection and uses the same mode the next time it is initialised. Theme Selection This option allows the appearance of the software to be changed.
• Chapter 9 Advanced features Note, that when first opened, the table on the left will normally be blank. The actions shown are only for reference. The SOP player controls are: Button Description Select this tab to add new items (or actions) to a playlist. Choices are SOP, Macro, Temperature, pH, Inject titrant and Pause. • Advanced features Chapter 9 Construct the playlist by selecting and configuring the Actions in the right pane; These are described in the following sections.
It displays the results and allows reports to be printed. • Chapter 2 Introducing the Zetasizer Nano Menu bar The menu bar contains the main menu headings for all software functions. Items which end with a row of dots (.) will display additional windows. Similarly any items which end with an arrow ( ) will display a second menu.
• Records and Reports - Viewing the Results Chapter 4 Lower values will be obtained for measurements on weaker scattering sample, or in turbid sample where background scattering is significant. Values >1 will only occur for samples with dust that makes the sample count rate fluctuate wildly. • Size quality report (M) This is a summary report detailing whether the result meets the Malvern Instruments quality criteria for a size measurement. The report indicates Result meets quality criteria, or Result does not meet quality criteria in which case. • Records and Reports - Viewing the Results Chapter 4 a list of parameters that do not meet the criteria, and probable reasons will be displayed. Some of these parameters will only be displayed if the research software has been used for the measurement. The parameters, followed by probable reasons displayed are: z Average is smaller than lower size display limit .
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Measurement position Positioning method Typically the measurement position that is automatically determined by the software will be appropriate for most sample measurements. • Using SOPs Chapter 8 Data Processing If characteristics are already known about the sample being measured, this window will allow an appropriate analysis model to be applied and so optimise the measurement calculation. Size ranges and measurement thresholds can be applied to the analysis to filter spurious peaks out prior to the analysis being performed. • Chapter 8 Using SOPs data processing. These are saved as.dass files. (The last s indicates the analysis setting has been created for a size or molecular weight measurement).
• Chapter 13 Zeta potential theory ions within the boundary move with it, but any ions beyond the boundary do not travel with the particle. This boundary is called the surface of hydrodynamic shear or slipping plane. The potential that exists at this boundary is known as the Zeta potential.
The same result information is present in both the computer and printed versions, except for the diagnostic reports which contain extended information on the printed version. • Records and Reports - Viewing the Results Chapter 4 Units conversion As in the Records view, within the results section of each report, it is possible to change the units used to define some of the parameters displayed. If the option is available, right-clicking on a parameter will display a parameter icon enabling the units to be changed. • Chapter 4 Records and Reports - Viewing the Results Size measurements - standard report The standard report for size measurements is Intensity PSD (M). (PSD stands for Particle Size Distribution). Ill 8444 The report is divided into four areas; these are described below. • Records and Reports - Viewing the Results Chapter 4 Duration used(s) Duration of measurement, used in the analysis of the result.
Insignificant fluid flow Stationary Layer ill 7674 M3 measurement sequence An M3 measurement is performed in the following manner: A Fast field reversal measurement is performed at the cell centre. • Chapter 13 Zeta potential theory Overall, the application of PALS improves the accuracy of the measurement of low particle mobilities. This can give an increase in performance of greater than 100 times that associated with standard measurement techniques. This allows the measurement of high conductivity samples, plus the ability to accurately measure samples that have low mobilities. • Zeta potential theory Chapter 13 Operation of the Zetasizer Nano - Zeta potential measurements In a similar way to the typical DLS system described in the size theory chapter, a zeta potential measurement system comprises six main components.