What are the available instrumentations to take measures in solution?

Nanoparticle Tracking Analysis (NTA) is a technique like PCS (“Photon Correlation Spectroscopy”) that uses light dispersion to characterize a solution. The PCS techniques are extremely fast but "see" only the predominant particle size in a solution. The NTA (NanoSight LM-10 and LM-20) instruments reflect the predominant dimension but also all other particles present in the solution. Others techniques such as DLS (“Dynamic light scattering”) ou le FFF (“Field flow fractionation”) are also used for measurements in solution.