Detection of fluorescent nanoparticles: visualize, size and concentration.
For fluorescent samples (like quantum dots) the Zetasizer has an option that can minimize the effect of (incoherent and thus undesirable for dynamic light scattering) fluorescent light: the narrow band filter eliminates most light that is not very close to the laser wavelength.
Narrow band filter – how it works and specifications
The narrow band filter is an optical component made out of glass with a special coating to reflect light outside the designated wavelength range. Only a select range (in the illustration, the red light) can be transmitted.
In the Zetasizer, the …