How to calculate the concentration of gold Nanoparticles?

I am working with 3 sizes of gold nano particles 5nm, 20nm and 40nm with 4.92E+13 - 6.01E+13, 5.89E+11-7.19E+11 and 6.44E+10-7.87E+10 concentrations particles/ml respectively. Could you please...

06 June 2021 6,133 3 View