Particle Size Analyzer

Overview

The AccuSizer® SPOS Systems are high-accuracy liquid particle counters and particle size analyzers based on Single Particle Optical Sizing (SPOS) technology. These systems deliver highly sensitive, high-resolution measurement of particle size distribution and particle concentration across a wide dynamic range, from submicron to hundreds of microns.

Engineered for demanding QC and process monitoring environments, AccuSizer systems support pharmaceutical, semiconductor, chemical, and industrial applications.

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Key Features

• Advanced SPOS Technology for precise particle detection and sizing

• High-resolution pulse height analysis (up to 1024 channels)

• Wide sensor options, e.g.:

  • LE400: 0.5–400 µm, scatter + extinction

  • FX: 0.7–20 µm, extinction

  • FX-Nano: ~0.15 µm to >10 µm, scatter

• Multiple fluidics configurations (direct flow, auto-dilution, two-stage auto-dilution)

• High concentration capability with autodilution options

• Configurable for regulatory standards (e.g., USP <787>, <788>, <789>)

• Ideal for QC, contamination control, formulation stability, and filter testing

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Applications

• Injectable pharmaceuticals & ophthalmic solutions

• Protein aggregation & stability studies

• Emulsions (lipid injectable emulsions, microbubbles, liposomes)

• Chemical mechanical polishing (CMP) slurries

• Inks, paints, and coatings

• Semiconductor liquids requiring LPC monitoring

• Filter performance testing

• Research & industrial fluid characterization

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Benefits

• Accurate particle concentration and size distribution

• Reduced measurement errors through automatic dilution

• Consistent, reproducible results

• Suitable for both low-concentration and high-concentration samples

• Rugged, reliable design for laboratory or production environments