I am trying to determine the colloidal stability of silver nanoparticles synthesized with grape extract. I want to estimate flocculation parameter. In research articles, it is defined as integrated absorbance. So, I want to know how to measure it using a spectrophotometer.
Titus Sobisch
You may measure at 2 wavelength larger or one equal to expected primary particle size.
The smaller one is more sensitive to the smaller particles. So the ratio between the 2 gives you an estimate which direction you are heading. You may search for 'turbidity ratio'.
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