The Nanoparticle Tracking Analysis system from NanoSight Techology is based on laser light scattering microscopy. The instruments can visualise and dynamically size populations of particles in a liquid on an individual basis in the particle size range of 10-1000 nm, dependent on material.
The Brownian motion of the particle is tracked separately but simultaneously using a CCD camera, from which a high-resolution plot of the particle size distribution profile is obtained.
The particle-by-particle approach avoids the averaging assumptions of photon correlation spectroscopy. The technique provides the user a simple, direct, qualitative view of the sample under analysis, from which a quantitative estimation of sample size, distribution and concentration can be immediately obtained.
Sample pre-treatment requires dilution with a suitable solvent to an acceptable concentration range (between 108 and 109 particles per mL depending on sample type). All particle types can be measured and in any solvent type, providing that the particles scatter sufficient light to be visible.
Phone: 02 4323 7822
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