Dynamic Light Scattering Particle Size Analysis (DLS)

Dynamic light scattering particle size analyzers are used to measure the size of very small particles (0.6 nm to 6 um) in solution. This class of particle size analyzer interprets particles’ sizes from the fluctuations in scattered laser light created by the particles’ Brownian motion. Dynamic light scattering analysis is used in medical, biological research and materials science applications, and is also known as photon correlation spectroscopy or quasi-electron light scattering.

Although requiring suspension in a solution, particle size analysis by dynamic light scattering offers the advantage of measuring particles across a wide range of densities, from parts-per-million up to 40% of solution. Other advantages include size analysis of particles in their native environment and micro-liter scale minimum sample sizes. In addition, dynamic light scattering particle size analyzers may also provide information on particle shape and require less user training. Analysis times typically vary from 30 seconds to 2 minutes per sample.
CompanyBrookhaven Instruments CorporationBrookhaven Instruments CorporationBrookhaven Instruments CorporationBrookhaven Instruments CorporationBrookhaven Instruments Corporation
ItemNanoBrook 90PlusNanoBrook OmniNanoBrook OmniNanobrook Series Size And Zeta Potential AnalyzersNanoBrook ZetaPALS
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Catalog NumberNanobrook
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DescriptionInquireInquireBrookhaven's NanoBrook Omni instrument combines the best technology from our particle/protein sizer and zeta potential analyzer in to one powerful and accurate solution for sizing and zeta potential analysis. Measure samples in nearly every possible suspension environment from high salts such as PBS... Read MoreThe NanoBrook Series particle/molecule size and zeta potential analyzers incorporate all you need for fast, routine, sub-micron measurements of size and zeta potential. The instrument incorporates the principles of Dynamic Light Scattering (DLS) for particle sizing and distribution and Doppler ... Read MoreInquire
TypeDynamic Light Scattering (DLS)Dynamic Light Scattering (DLS)Dynamic Light Scattering (DLS), Electrophoretic Light Scattering (ELS), Phase Analysis Light Scattering (PALS)Particle size and zeta potential analyzersPhase Analysis Light Scattering (PALS), Electrophoretic Light Scattering (ELS)
Particle Size1 nm to 6 um diameter0.3 nm to 10 µm<0.6 nm to 10 um (at 173 degrees); 1 nm to 6 um (at 90 degrees)< 0.3 nm to 10 µm (DLS), 1 nm to 100 µm (Zeta)Inquire
Detector(s)Low dead-time Avalanche Photodiode (APD)Avalanche Photodiode (APD)Avalanche Photodiode (APD)Avalanche Photo Diode (APD)Avalanche Photodiode (APD)
Measuring Time1-2 minutes typical1-2 minutes typical1-2 minutes typicalInquireSeconds to minutes
Light Source40 mW temperature-controlled semiconductor laser40 mW red diode laser, 640 nm40 mW red diode laser, nominal 640 nm wavelength40 mW 640 nm temperature-controlled solid-state semiconductor laser. Alternative wavelengths available40 mW red diode laser, nominal 640 nm wavelength
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