Quantitative analysis of nanoparticles using SEM according to EFSA guideline

This analysis is the next step for the "Qualitative analysis of nanoparticles using SEM according to EFSA guideline". Qualitative analysis determines if the sample contains particles with a size < 500 nm. If such particles are found, quantitative analysis with SEM is required as an extra step.

This quantitative analysis of the size distribution by SEM determines the % of particles with a size < 250 nm from 300 particles.

Note: This analysis should only be performed if nanoparticles have been discovered during the qualitative analysis.