News, views and contacts from the global Chemicals industry
Analytical Solutions for Manufacturing Productivity logo

Number and Volume Size Distributions

10 October 2016 by Malvern Instruments

The nature of a particle size distribution analysis is dependent upon the manner in which the particles involved are weighted. Three different distribution weighting mechanisms are commonly used: number, volume and intensity. An intensity distribution weights particles according to the amount of light they scatter, a volume distribution weights particles according to the volume they occupy, and a number distribution weights particles according to their concentration.

This application note demonstrates practically the information that each distribution gives when applied to a protein formulation, and how the values generated by the different weightings can be used in conjunction to give a better idea of the nature of a sample.

Please download this free white paper to read more.

Available Downloads

  • Number and Volume Size Distributions
    Download