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b_b  ·  528 days ago  ·  link  ·    ·  parent  ·  post: Pubski: April 15, 2020

There's a technology called nano tracking analysis that I use to quantify what's there. It essentially works by scattering laser light, then watching the Brownian motion of the center of the scatter point.

The other popular technique is call resistive pulse sensing. Both work pretty well.