*For a definition of Fraction/(Size Class), see the application note “What Is A Discrete Particle Size Distribution?”. **Porous particles that embody a lot more surface area. Surface area-weighted ...

Particle-size analysis. The PSD of each sample was evaluated using a Sympatec Helos/Rodos laser diffraction particle-size analyzer (Sympatec Inc., Lawrenceville, NJ) with dry dispersion capability.

When particles in a sample are the same size, one particle can be measured to report the result. If the sample has a narrow distribution, such as 10-25 µm, then measurement of just a few particles can ...