The NANO-flex® is a nanoparticle measurement system for particle size distribution with 180° Dynamic Light Scattering (DLS).
Particle Size Distributions
The NANO-flex® 180° DLS System measures size distributions in the range of 0.3 nm to 10 µm.
The applied heterodyne 180° back scattering principle of the Nanotrac® is characterised by its high selectivity in the nano-range and is therefore also suitable for samples with broad size distribution. Furthermore, the resolution is impressive. Highly concentrated samples are measured without interfering multiple scattering.
The applied Nanotrac® back scattering in the NANO-flex® is designed as a flexible measuring probe with 8 mm ø. Thus, it can be used in many ways, even in-situ and in the measuring cylinder of the Stabino®!
- 180° heterodyne dynamic light scattering (shortest light path in the sample giving no multiple light scattering)
- Measurement in a variable concentration range (0.01 up to 40%) from 0.3nm to 10um particle size.
- Dip in probe offering online in-situ size measurements
- Solvent resistance
- Used in combination with Stabino® for simultaneous size, zeta potential and titration/stability measurements
The 180° DLS–Method
The laser is focused to the sample via an optical fiber and a sapphire window. The window reflects a part of the incoming laser light. Both, laser reflection and scattered light interfere at the detector diode. Due to the excellent signal/noise ratio, there is no need for an expensive detection system.
Inserted in a reactor or in the sample circuit of a milling system the probe delivers in-situ size information. When the probe is kept by a roboter arm, multiple sampling is possible. Customised solutions may be offered on demand.
DLS applications with the NANO-flex® module are almost unlimited, provided the viscosity of the sample is in the Newtonian range, a condition for the free Brownian movement in the fluid and for the accurate calculation of the size. The liquid medium of the particles can be of organic or aqueous nature. The critical coagulation point of a dispersion can be determined by measurement of size and potential with the Stabino®. For this purpose, the NANO-flex® size sensor is dipped into the Stabino® measuring cylinder.
Request a quote for the NANO-flex® or call on UK: +44 (0)1954 232 776 / IE: +353 (0)144 751 70.