NanoBrook 90Plus PALS
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Particle Size & Zeta Potential using Phase Analysis Light Scattering Nanoparticle Sizing Zeta Potential of Nanoparticles Zeta Potential of Proteins

Particle Sizer and Zeta Potential Analyzer Brookhaven's NanoBrook 90Plus PALS instrument combines our NanoBrook 90Plus and NanoBrook ZetaPALS instruments into one versatile package for routine sizing and zeta potential analysis. It employs Dynamic Light Scattering (DLS) for particles/molecules size and Phase Analysis Light Scattering (PALS) for particles/molecules surface charge evaluation. This package not only allows rapid measurements of the effective size and zeta potential of samples, but also provides further information on multimodal size distributions Based on the proven...

Principles of Operation The NanoBrook 90Plus PALS utilizes phase analysis light scattering to determine the electrophoretic mobility of charged, colloidal suspensions. Unlike its cousin, Laser Doppler Velocimetry (LDV) (sometimes called Laser Doppler Electrophoresis (LDE)), the PALS technique does not require the application of large fields which may result in thermal problems or denaturation. Because in the measurement of phase shift, the particles need only to move a fraction of their own diameter to yield good results. In salt concentrations up to 2 molar and with electric fields as...

Particle Size & Zeta Potential using Phase Analysis Light Scattering Specifications Sample Type Sizing: nano particle and colloidal-sized materials, in any non-absorbing liquid. Zeta potential: proteins, nano particle, polymer and colloidal-sized materials, suspended in any nonabsorbing liquid, with relative permittivity (dielectric constant) > 1.5 and viscosity < 30cP. Size Range Sizing: > 1 nm to 6 µm diameter, depending on refractive index and concentration Zeta potential: 1nm to 100 µm, sample dependent Mobility Range Zeta potential range Maximum sample conductivity Sizing: unlimited...