The Nanotrac Flex in-situ particle size analyzer delivers fast and accurate analysis capability.
Powered by Microtrac’s enhanced Dynamic Light Scattering technology, the Nanotrac Flex is ideal for measuring particles across wide concentration ranges using minimal sample volume. Named appropriately, the external probe provides users with the flexibility to measure sub nanometer to several micron particle suspensions in-situ or on a lab bench.
What sets the Nanotrac Flex apart from other DLS systems is the unique probe technology, which turns any vessel into a sample cell. The probe also utilizes an enhanced optical signal, which yields fast, accurate, and sensitive particle size measurements of materials ranging from ppm to near finished product.
The Nanotrac Flex is designed for in-situ measurements of colloidal systems. It is based on 180° heterodyne dynamic light scattering and can measure up to 40% material concentration. With this setup, a part of the laser beam is added to the scattered light. This works like an optical enhancement of the scattered light. In addition to particle size one can also measure the molecular weight according to Debye. The needed dn/dc value needed will be measured automatically and doesn’t need to be added from a table. A mixture of 100 and 250 nm Polystyrol Latex will be detected as separate peaks. Despite its multiple capabilities, it doesn’t lack in accuracy and safety. The extensive analysis data highly exceeds the requirements of ISO 13321 and meets safety requirements according to CFR21 Part 11.
The fiber measurement method is used in the Nanotrac Flex to use the fiber end as a dip-in probe. Advantages of this method are that no cuvettes are needed, the direct measurement in the product and the inline option. The results are ready after a measurement time of 10 to 100 seconds. The parameters like refractive index and absorption of the particles, as well as the viscosity of the surrounding liquid, are needed for the accuracy, and are available in a database. With the proprietary Mie-calculation, the user is able to measure transparent or light absorbing samples, as well as spherical, non-spherical and irregular particles as well.
The probe, which is the catalyst for Reference Beating, Microtrac’s enhancement to traditional DLS, increases the optical signal back to the detector anywhere from 100 to 1,000,000 times more than systems who use “self-beating.” The enhanced signal produces superior analysis results when measuring single modes or multi-modes across the widest concentration range.
Check out this short presentation, to learn about our unique approach to DLS.
Applications for the Nanotrac Flex:
- Academic Research
Nanotrac Flex In-situ Particle Size Analyzer Details:
- Turn any vessel into a sample cell – the external probe allows you to dip and measure
- Small sample volume required
- Amplified optical signal for unparalleled accuracy and sensitivity, compliments of Reference Beating – only from Microtrac
- No advanced, or “A priori” knowledge of the particle size distribution is required
- Ability to measure size and concentration simultaneously. – Watch presentation that explains the capability.
- Molecular weight determination
- Numerous probe lengths available
- Universal solvent compatibility
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