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Dynamic Light Scattering Spectrophotometer
DLS-8000 series

Measurement system for particle size and particle-size distribution using “dynamic light-scattering method” and absolute molecular weight, radius of gyration, and the second virial coefficient using and “static light-scattering method"
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Measurement Targets
  • Synthetic Polymer
  • Bio polymer
  • Inorganic material
Measurement Items
  • Particle sizing range
  • Translation diffusion coefficient
  • Molecular weight measurement range
  • Radius of gyration
  • Second virial coefficient
Features
  • Measures particle size and particle-size distribution based on the dynamic light-scattering method, and absolute molecular weight, radius of gyration, and the second viral coefficient based on the static light-scattering method.
  • He-Ne laser, Ar laser, double laser (He-Ne, Ar) models are available.
  • Adopts a liquid-immersion optical system, supporting high precision measurement for extremely weak scattering of nano order particles.
  • Supports multimode analysis of concentrated polymer solutions, using a correlator providing up to 4,096 channels.
  • Supports gel-state analysis in combination with the optional gel rotation cell.
Dynamic Light Scattering Spectrophotometer DLS-8000
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Particle Size Analyzer About the Dynamic Light Scattering Spectrophotometer DLS-8000 series

Measurement system for particle size and particle-size distribution using “dynamic light-scattering method” and absolute molecular weight, radius of gyration, and the second virial coefficient using and “static light-scattering method"

Measurement Items

Particle sizing range

Translation diffusion coefficient

Molecular weight measurement range

Radius of gyration

Second virial coefficient

Measurement Targets

Synthetic Polymer

  • Dilute polymer solutionlatexemulsionmicellesolconcentrated polymer solutionpolymer melting solution

Bio polymer

  • Proteinnucleic acidviruspolysaccharideliposomevesiclecell

Inorganic material

  • Inorganic dilute polymer solutionceramicspigmentmagnetic substancemetallic colloid

Measurement Examples

Principle

Specifications

Measurement Items

Particle sizing range

1.4 nm to 7000 nm(Ar)


<3 nm to 7000 nm(He-Ne)
Translation diffusion coefficient -2×10-6to 2×10-9cm2sec-1
Molecular weight measurement range 3×102to 2×107
Radius of gyration 20 to 1000 nm
Second virial coefficient -'-1 to 20×10-4mol・cm3・g-2

Specifications

Light source

 He-Ne laser (10 mW)
He-Ne laser + solid laser(10 mW)（100 mW)
Detector Photomultiplier tube (photo counting method)
Cell 21 φCylindrical cell, 12 φCylindrical cell、5 φmicro volume cell (option)
Cell Temperature 5 to 90 ℃ （Thermostatic circulating system ：Circulation bath - Optional)
90 to 160 ℃（Temp. control system：only available for high temp. spec）
Angle range 5 to 160゜（Automatic/ Stepping motor drive）
Accuracy ±0.1°
Power supply AC 100 V 300 VA
Dimensions (W × D × H) 440 × 700 × 570 mm 590 × 700 × 570 mm
Weight Approx. 50 kg Approx. 60 kg

Options

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