Dynamic light scattering spectrometer

Measures particle size and particle-size distribution based on the dynamic light-scattering method, and absolute molecular weight, radius of gyration, and the second virial 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

Model	DLS-8000HL/HH	DLS-8000DL/DH
Light source	He-Ne laser(10mW)	He-Ne laser + solid laser(10mW)(100mW)
Size and weight	440(W) x 700(D) x 570(H)mm, approx. 50kg	590(W) x 700(D) x 570(H)mm, approx. 60kg
Detector	photomultiplier tube(photo counting method)
Cell	21φ cylindrical cell, 12φ cylindrical cell, *5φ micro volume cell
Cell temperature	5 ~ 90℃(*thermostatic circulating system: circulation bath) 90 ~ 160℃(temp. control system: only available for high temp.)
Angle range	5 ~ 160°(automatic / stepping motor drive)
Accuracy	± 0.1°
Power supply	AC100V, 300VA

Measurement items

Particle sizing range	1.4nm ~ 7,000nm(Ar), 3nm ~ 7,000nm(He-Ne)
Translation diffusion coefficient	2×10^-6 ~ 2×10^-9cm²sec^-1
Molecular weight measurement range	3×10^2 ~ 2×10^7
Radius of gyration	20 ~ 1,000nm
Second virial coefficient	-1 ~ 20×10^-4mol·cm^3·g^-2

Measurable samples

Synthetic polymer
Dilute polymer solution, latex, emulsion, micelle, sol, concentrated polymer solution, polymer melting solution

Bio polymer
Protein, nucleic acid, virus, polysaccharide, liposome, vesicle, cell

Inorganic material
Inorganic dilute polymer solution, ceramics, pigment, magnetic substance, metallic colloid

Dynamic light scattering spectroradiometer