How reproducible is the result?
Given the statistical nature of analysis of a population of particles, reproducibility is a function of the numbers of particles measured over the period of analysis. For optimum concentrations of monodisperse samples containing no contaminating aggregates, results reproducible to within approx 2-3% can be achieved in a comparatively short time (e.g. 10-20 seconds). Clearly, for low concentrations of particles exhibiting a range of particle sizes, extended analysis periods will be required to obtain reproducibility of results. Note that analysis times need to be increased for larger particle diameters to achieve similar reproducibilities.
