Which particle-size method gives the single true result?
There is no universal answer independent of the measurement definition. Select a technique that answers the stated question and interpret comparisons within each method's scope.
Sieving describes passage through openings; image analysis can describe geometric dimensions; laser diffraction reports a model-based distribution; DLS describes diffusion-related hydrodynamic size in a liquid. Align sample state, size definition and weighting before deciding whether two results should agree. A disagreement is not automatically an instrument fault.
Planning measurement method comparison
Define the measurement question before selecting a preferred technique. Sample state, geometry and distribution weighting can explain differences between valid methods. Use paired measurements on representative material, retain the conditions and evaluate any proposed correlation across the actual working range before transferring an acceptance criterion.
What to bring to an application discussion
| Consideration | Information to provide |
|---|---|
| Analytical question | Property the decision needs |
| Method definition | Size model and distribution basis |
| Comparison conditions | Sample state and preparation |
Questions before selecting a configuration
How can Glen Mills help with this application?
Share analytical question, method definition, comparison conditions when you contact Glen Mills for further information or a quote. This helps focus the discussion on the preparation and evaluation described here.
How should a measurement result be assessed?
Use the size definition, distribution basis and acceptance criteria required by your measurement method. Discuss particle measurement with Glen Mills when a representative trial is needed to evaluate the configuration.
Explore particle characterization equipment
Review the equipment details and discuss the supported configuration for your sample.