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.

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Nano DS Particle Size Analyzer
  • Measuring Time: 30 s to 60 s depending on sample and protocol
  • Light Source: Laser Diode @ 638 nm- 25mW
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SZ-100 Nanoparticle Size and Zeta Potential Analyzer
  • Measuring Time: ~ 2 min
  • Light Source: DPSS 532 nm, 10 mW Laser
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Mastersizer 3000E Laser Diffraction Particle Size Analyzer
  • Measuring Time: <10 sec
  • Light Source: Red light source: Max. 4mW He-Ne, 632.8 nm
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Zetasizer µV Protein Size Analyzer
  • Measuring Time: Inquire
  • Light Source: 60 mW, 830 nm Laser
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Zetasizer APS Protein Size Analyzer (Auto Plate Sampler)
  • Measuring Time: Inquire
  • Light Source: 60 mW, 830 nm Laser
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Zetasizer Nano Series Particle Size and Zeta Potential Analyzer
  • Measuring Time: Inquire
  • Light Source: 4mW HeNe Laser (633 nm)
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NanoPlus DLS Particle Size and Zeta Potential analyzer

Micromeritics Instrument Corporation

  • Measuring Time: Inquire
  • Light Source: Semiconductor Laser
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Saturn DigiSizer II Digital Particle Size Analyzer

Saturn DigiSizer II Digital Particle Size Analyzer

Micromeritics Instrument Corporation

  • Measuring Time: <5 min
  • Light Source: Inquire
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DynaPro® Dynamic Light Scattering Plate Reader
  • Measuring Time: Within Seconds
  • Light Source: 830 nm laser, programmable 10% - 100% of maximum power
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WyattQELS™ Light Scattering Detector Module

WyattQELS™ Light Scattering Detector Module

Wyatt Technology Corporation

  • Measuring Time: 1 to 3600 sec
  • Light Source: Inquire
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  • Malvern Instruments
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