SALD-7101 Laser Diffraction Particle Size Analyzer
Allows Observing the Status of Unstable Nanoparticles in Real Time

Opens Doors on Nanotechnology by 375 nm UV Laser


First in the World to Adopt a 375 nm UV Semiconductor Laser
A great new tool for research and development in nanotechnogy and life sciences


10 nm Lower Limit of Detection

Serial measurements based on the same measurement principle are possible for particle changing across the 10 nm to 300 µm measurement range. Accurate particle size distribution measurements are assured across the entire measurement range, as the instrument does not incorporate multiple optical systems that create discontinuities in the data.

1-second Minimum Measurement Time

Serial observations of the dispersion or dissolution reaction processes are possible at 1-second intervals, and these results can be saved. Functions for statistical processing and 3D display of the particle reaction processes offer multifaceted analyses and evaluations. (Using the optional WingSALD-7101CM serial measurement software.)

Measure Concentrations from Several ppm to 20%

Accurate analysis of samples in which the particle size distribution changes with dilution is possible, as measurements can be conducted on the undiluted solution or after minimal dilution. For example, commercial hand creams, face creams, and rinses can be measured with hardly any pretreatment.

Combining a Variety of Data Processing Functions with Simple, Quick Operability

Divided into three "wings" (subprograms) to suit different purposes and processing requirements. Features a simple menu configuration and high operability.
Combining a Variety of Data Processing Functions with Simple, Quick Operability

Principle of the Laser Diffraction

Optical System in SALD-7101

The laser beam emitted from the light source (semiconductor laser) is converted into a thick beam with a collimator and this is directed at the particle group. The scattered light emitted from the group in a forward direction at up to a wide 60∞ angle is concentrated with a lens, and concentric scattering images are formed at a detecting plane positioned at a distance equal to the focal length. This is detected with the wing sensor in which light-receiving elements are arranged concentrically. The scattered light emitted to the side and backwards is detected with side and back scattered light sensors. The ligft intensity distribation data can be obtained by detecting scattered ligft data of all directions.
Optical System in SALD-7101

For Research Use Only. Not for use in diagnostic procedures.