TEM Particle Update

ByJessica Snyder

This is a reprisal of the old post.

While manufacturer declares particles to be 5, 10, etc, they do however give a measured average to their particles in the written material they provide.  I did not have that in the last chart.  Here I also add the standard deviation of TEM and Malvern data (as deviation of peak size).

 

Manufacturer’s Actual Size Coefficient of Variation TEM Size St Dev Number Tested DLS Size DLS Dev
5.6 <15% 6.60 .62 41 8.16 .94
9.2 <10% 7.79 .85 20 9.39 .37
15.2 <10% 12.71 .88 49 13.17 .42
20.1 <8% 16.03 1.46 65 17.17 .06
29.9 <8% 25.72 2.06 44 28.93 .06
40.6 <8% 34.35 2.30 40 30.67 .55

 

TEM images of gold located here.

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