DLS – Dynamic Light Scattering – Diffusion de la lumière dynamique

Microtrac Nanotrac Flex
Microtrac Nanotrac Flex
The Nanotrac Flex in-situ particle size analyser 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 (in process) 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 utilises 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% w/v 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. Particle sizes range from 0.8 to 6,500 nm. 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 22412 and meets safety requirements according to CFR21 Part 11. The fibre 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 and irregular particles. 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. Applications for the Nanotrac Flex:
  • Pharmaceuticals/Biotechnology
  • Chemicals
  • Food/Beverage
  • Plastics/Polymers
  • Coatings/Coverings
  • Inks
  • Adhesives
  • Academic Research
Nanotrac Flex In-situ Particle Size Analyser 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
  • Measures particles ranging in size from 0.8 to 6,500 nanometres
  • No advanced, or “A priori” knowledge of the particle size distribution is required
  • Ability to measure size and concentration simultaneously.
  • Molecular weight determination
  • Numerous probe lengths available
  • Universal solvent compatibility
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Microtrac Nanotrac Wave II
Microtrac Nanotrac Wave II

Accurate particle size zeta potential analyser ideal for characterising nanoparticles.

Featuring an enhancement to traditional DLS, the Nanotrac Wave II employs Reference Beating, which amplifies the signal back to the photodector, producing unparalleled accuracy for measuring particle size, zeta potential, molecular weight, and concentration of colloidal systems. The Nanotrac Wave II provides users with superior particle analysis capability by taking advantage of an enhanced optical signal, innovative probe technology, and advanced algorithms. Whether your material is in ppm concentration or near a finished product, the Wave II obtains fast, sensitive, and precise measurements of materials ranging from sub-nanometres to several micrometres. Reference Beating increases the optical signal between 100 to 1,000,000 times compared to traditional DLS. The increased optical signal enables users to accurately measure single and multi-mode distributions across the widest concentration range in the market. Dubbed appropriately, the Microtrac Way, check out this short presentation to learn more about our proprietary technology. Applications for the Nanotrac Wave II:
  • Pharmaceuticals/Biotechnology
  • Chemicals
  • Food/Beverage
  • Plastics/Polymers
  • Coatings/Coverings
  • Inks
  • Adhesives
  • Academic Research
Nanotrac Wave II instrument details:
  • Enhanced optical signal for superior accuracy compliments of Reference Beating – available only from Microtrac
  • Unique probe design, fixed optics, and 180° backscatter collection enables fast and precise measurement across the widest concentration range – from ppm to near solids (40% w/v)
  • Measures particles ranging in size from 0.8 to 6,500 nanometres
  • No “a priori” or advance knowledge of the particle size distribution is required
  • Able to measure Zeta Potential closer to iso-electric point by eliminating errors caused by electro-osmotic flow. ZP measurement ranges from -200 to +200mV
  • User selectable data presentation modes
  • ISO 22412 and CFR21 Part 11 compliant
  • Distribution – standard volume particle size distribution
  • Legacy – ensure data consistency when transitioning from “legacy” instrument
  • Mode – simultaneously measure size and concentration.
  • Removable sample cell – available in Teflon or stainless steel
  • 150 µl sample volume required – ideal for expensive materials
  • Peltier temperature control device
  • Multiple flow cell options – ability to connect a titrator.
15nm and 120nm bi-mode ? No problem for the Nanotrac Wave II.

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Microtrac Nanotrac Wave II Q
Microtrac Nanotrac Wave II Q
Nanoparticle size analyser accurately measures colloidal systems across wide concentration range. The Nanotrac Wave II Q combines the best of both worlds for nanoparticle size analysis; Microtrac’s proprietary probe technology, adapted for a cuvette interface, facilitating fast measurements and the ability to dispose of the sample cell after use. Using Reference Beating, an enhancement to traditional DLS, the Nanotrac Wave II Q delivers an amplified optical signal back to the photodetector, resulting in superior measurement accuracy for measuring size and molecular weight of nanoparticle suspensions. Providing unparalleled characterization results, the Nanotrac Wave II takes full advantage of the amplified optical signal, probe technology fixed at the cuvette interface, and advanced algorithms. From ppm to near finished product, the Nanotrac Wave II Q determines fast, repeatable, and sensitive measurements of particles ranging from sub-nanometer to several micrometer. Even with a cuvette, Reference Beating increases the optical signal between 100 to 1,000,000 times compared to traditional DLS. Users can accurately measure single and multi-modal distributions across a broad concentration range. Check out this short presentation that explains our proprietary technology, appropriately titled, the Microtrac Way. Applications for the Nanotrac Wave II Q:
  • Pharmaceuticals/Biotechnology
  • Chemicals
  • Food/Beverage
  • Plastics/Polymers
  • Coatings/Coverings
  • Inks
  • Adhesives
  • Academic Research
Nanotrac Wave II Q Analyser Details:
  • Measures particle size from 0.8 to 6,500 nanometres
  • No blank measurement or prior knowledge of the size distribution required – simply load cuvette and measure
  • Compatible with 4 cuvette volumes:
    • Macro volume – 1000 μl
    • Glass – 1000 μl
    • Semi-micro volume – 300 μl
    • Micro volume – 50 μl
  • Simultaneously measure size and concentration.
  • Widest concentration range on the market from ppm to 40% w/v
  • Cuvette error detection alerts
  • Peltier temperature control device
  • ISO 22412 and CFR21 Part 11 compliant
Having a hard time seeing those 30 nm particles mixed in with larger particles? The Nanotrac Wave II Q can clearly resolve both the 100 nm and 30 nm particles. Nice clean peaks.

[media-downloader media_id="4473" texts="Download the datasheet of the Nanotrac Wave II Q"]

[media-downloader media_id="4472" texts="Download Microtrac DLS product family brochure"]

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