What does it imply if the 2 runs shows quality report as good, while the 3rd run shows as :Too polydisperse; in DLS measurement?

I have used the DLS machine (Zetasizer Software) to measure the size of micelle prepared. For the first 2 runs the quality report shows "Good", while the 3rd measurement shows as "Too...

18 April 2024 4,473 3 View