FAQ about Nonoparticle Size Analysis
Nanoparticles can be intrinsically present in a product, or they can become airborne when a material is handled, stressed or processed. These situations require different analytical approaches. Intrinsic nanoparticles are typically assessed using particle sizing and microscopy techniques, while airborne nanoparticle release can be investigated using specific dustiness and airborne …
Nanoparticle size analysis helps determine whether a material contains particles within the nanoscale range. It can also provide information relevant to product performance, material quality, safety assessment and regulatory classification under frameworks such as REACH.
Nanoparticle size distribution describes the range and relative amount of different particle sizes present in a sample. Measuring the distribution rather than only the average particle size is important because a sample may contain nanoparticles as well as larger particles or agglomerates.
Nanoparticle size can be measured using techniques such as dynamic light scattering, differential centrifugal sedimentation, scanning electron microscopy or transmission electron microscopy. The best method depends on whether the particles are analysed in a liquid or as a dry powder, as well as on the required size range and level …
