Partica combines a dynamic image analysis optical system with a laser-diffraction/scattering optical system to analyze particle size distribution and particle shape simultaneously.
Because results from different measurement principles can be compared and verified in a single test, Partica reduces the number of measurements, measurement time, and workload while improving the reliability of analytical results.

• Features

Laser Diffraction Analysis

• Industry-leading^*1 high-precision measurement (within ±0.6% of certified reference values)   ^*1 Based on HORIBA research as of August 2026.
• Wide measurement ranges: 10 nm to 3 mm for wet method and 100 nm to 5 mm for dry method
• An improved optical system enables high-sensitivity measurements

Dynamic Image Analysis

• Two cameras with different magnifications enable continuous measurement of particle shapes from approximately 1 μm to several millimeters.
• Analyzes tens of thousands of particles in a short time at up to 300 frames per second.
• Provides approximately 40 image analysis parameters, including diameter, minor diameter, roundness, and aspect ratio.
• Eliminates the need for switching operations, such as changing objective lenses in static image analysis or apertures in the electrical sensing zone method.

Click here for details on static light scattering/laser diffraction analysis, and dynamic image analysis 

Completes Everything from Injection to Cleaning within 60 Seconds

The entire process—from dispersing the sample in the dispersion liquid through measurement and rinsing—is completed within 60 seconds. This speed is made possible by a design structure that efficiently transfers the sample from the sample bath to the flow cell, a pump design that minimizes stagnation, adhesion, and a carefully engineered rinsing sequence that efficiently removes the particles and dispersing liquid.

A Wide Range of Accessories Enables Analysis of Samples in Various Forms

Measurement options can be adapted to the sample condition.

• Sampling accessories can be selected to suit the analytical purpose, including measurements of powders and slurries.
• The system can also measure small sample volumes, including rare or environmentally sensitive materials.
   

Optional Accessories

MiniFlow (Circulation system)		Minimize sample and dispersant volume requirements with all the convenience of a fully-automated circulation system.   Measurement needs as little as 35 mL of solvent (180 mL with conventional circulation systems). The built-in ultrasonic probe enables sample dispersion.
Dry Powder Feeder		The Dry Powder Feeder Unit can measure samples in a powder samples. It supports both non-dispersed measurement by free fall and forced-dispersion measurements using compressed air.
High Concentration Cell		The High Concentration Cell can measure close to their original concentration with little or no dilution. This accessory works for both laser diffraction analysis and dynamic image analysis, but an individual cell holder is required for each analysis.   Measure inks, paints, pigments, emulsions without dilution. Positive and negative electrode materials of secondary batteries, etc. Observe changes in the agglomeration state based on concentration, etc. Agglomeration was observed when a battery sample was measured close to its original concentration.
Paste Cell		The Paste Cell can measure undiluted samples or samples dispersed in a viscous medium. This works for the laser diffraction analysis limited.   Measure microparticles dispersed in high-viscosity samples or polymers. Magnetic powder: Measure it after dispersing it in viscous oil to prevent re-agglomeration.
Fraction Cell		The Fraction Cell can measure sample volumes as small as 5 mL while minimizing the amount of dispersant required. Use it when there is not enough sample for a Flow Cell measurement, or when you need to reduce the amount of valuable sample or hazardous dispersion media, such as toluene. This helps minimize exposure and cost.   Cell volumes: 5 mL, 10 mL, and 15 mL Fully resistant to solvents

Measurement Example:

Silica Slurry

When measuring the particle size distribution of high-concentration samples using laser diffraction/scattering, it can be difficult to detect a small number of coarse particles. Partica captures particle images in addition to particle size distribution data, enabling the detection of even a small number of coarse particles and confirmation of their shapes.

Laser diffraction/scattering-based particle size distribution measurements can have difficulty detecting particles with a low number fraction and weak scattered-light signals. By combining laser diffraction/scattering with dynamic image analysis, Partica provides a more detailed view of the sample.

Development Story: 

Elevating Material Development and Manufacturing to a New Level Through Particle Measurement and Analysis Technology
Learn about the background of the “Partica” development project and the developers’ vision behind it. Explore HORIBA’s efforts to advance particle analysis technology and help address our customers’ challenges.