Guide to Dry Measurement with Particle Size Distribution Analyzer
We offer guidance on dry measurement for those who measure powder with the Mastersizer 3000 using wet methods.
What are the Benefits of Dry Measurement?
1. You can measure powder in its original state.
2. Free yourself from the challenges of wet dispersion such as dissolution and reagglomeration.
3. No additional costs for organic solvents.
4. Measurement results can be obtained within 1 minute after sample introduction.
5. Smooth transition from wet measurement.
Dry measurement is a technique where the dried powder is directly introduced into the device without using dispersion media like water or organic solvents. Traditionally, it has been difficult to achieve both “disperse agglomerates without leaving lumps” and “disperse without crushing.” However, the Mastersizer’s dry dispersion unit AeroS solves these conflicting issues by offering venturis with selectable dispersion power and precise dispersion pressure settings according to the sample.
Compatibility with Wet Measurement
There is a concern that differences in data may arise when switching from wet measurement to dry measurement. However, since the Mastersizer allows detailed matching of dry measurement conditions, high compatibility with wet measurement results can be expected.
Figure: Particle size distribution comparison of dry and wet measurement with Mastersizer 3000We also accept consultations on measurement condition settings after implementation.
For information on measurement consultation sessions held monthly and available online, see here
Process of Dry Measurement
In dry measurement, simply set the sample as a powder, select the measuring conditions, and click the start button.
Condition settings can be saved in SOP (Standard Operation Procedure) files, so repeated condition input is unnecessary for measuring the same sample.
The powdered sample is automatically fed into a sealed path and measured after performing the specified dispersion processing.
You are freed from the pre-dispersion processing of powder and the cleaning/disposal of solvents seen in wet measurement, allowing more efficient analysis.
Specifications of Dry Measurement Unit AeroS
Particle size: 0.1–3500 μm †
Minimum sample quantity required: Approximately 10mg †
Dispersion pressure range: 0–4 bar
Dimensions (W x D x H): 180mm x 260mm x 380mm
Weight: 10.5kg
✟ Depends on the sample
For detailed specifications, see here
Online Demo Information
What kind of data can be obtained with the actual sample?
Malvern Panalytical offers not only on-site measurements in the lab but also online equipment demos.
For those who find it difficult to travel, please feel free to contact us.
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