With the unique and flexible probe design and the use of the Laser Amplified Detection method in the NANOTRAC FLEX, the user is able to choose an appropriate vessel as a measurement cell to satisfy the needs of any application. This design also allows measurements of samples over a wide concentration range, monomodal or multimodal samples, all without prior knowledge of the particle size distribution. This is made possible through the use of the Frequency Power Spectrum (FPS) method instead of classical Photon Correlation Spectroscopy (PCS).

Nanoparticle Size Analyzer NANOTRAC FLEX

• Most flexible Dynamic Light Scattering ever
• Unique external probe design
• In situ particle sizing and monitoring
• 180° backscatter DLS setup
• Turn any vessel into a sample cell – no consumables required
• External probe allows dip and measure
• Universal solvent compatibility
• Small footprint
• Frequency Power Spectrum calculation model instead of PCS
• Laser Amplified Detection – high signal to noise ratio

The unique design of the NANOTRAC FLEX probe allows to measure down to only one droplet, thus requiring only a minimum sample volume. The probe also easily fits into a 1.5 ml Eppendorf Tube®. With the NANOTRAC FLEX, every vessel can be used as a measurement vessel, and there is no need for cuvettes of any kind. This makes it possible to use the probe either at line or in line for monitoring the particles' growth during a reaction.

During a reaction, the dispersion is either flowing or stirring. The dispersion motion will obscure the Brownian motion, and a Dynamic Light Scattering (DLS) measurement is normally not possible.

To measure in stirring or moving liquids, the FlowGuard can be used. This special cap for the NANOTRAC FLEX probe tip creates an enclosure around the probe, which shields the measurement surface from turbulent flow. An orifice ensures the constant exchange of the sample, while slowing down the stirring movement at the probe interface. This design ensures an accurate particle size distribution that is representative of the suspension outside the enclosure.

This probe design enables the measurement of samples over a wide concentration range, monomodal or multimodal samples, all without prior knowledge of the particle size distribution. The probe is also very easy and quick to clean between sample measurements of any kind. Additionally, the user can choose from a wide array of measurement cells to satisfy the needs of any application.