LUMiSpoc® - accurately size and count all your particles; every particle; one particle at a time.

Single Particle Counting and Sizing

The LUMiSpoc® is a liquid particle counter and particle sizer. It combines the patented Single Particle Light-Scattering Technology® (SPLS) with hydrodynamic focusing, giving you unprecedented dynamic range and accuracy in the nanometer and micron-size particle range.

Single particles are lined up in a single file by hydro-dynamic focusing in a specially designed optical flow cell. The flow cell channels all particles to the center of the flow stream. The surrounding sheath flow acts as a liquid wall, preventing mechanical blockage and ensuring all particles are fed through the detector and counted.

Additionally, the cross-section of the sample flow can be adjusted dynamically (by factor 35) with no changes to the mechanical parts. This allows you to work in a broad sample concentration range.

When a single particle crosses the laser beam, the light is scattered in all directions. Forward and sideward scattering of light are recorded simultaneously using two photomultipliers and are analyzed in real-time after amplification and digitalization.

The scattered light intensities determined for each particle are sorted in over 1 million bins and displayed as a high-resolution bar chart stating the count distribution on an easy-to-use touch screen.

The Mie theory converts Classified intensities into particle size distribution density. Measurement, data storage, and analysis are powered by the software platform SEPView®.

SPLS-Technology® enables you to analyze nanoparticle and micron-particle-sized emulsions and suspensions correctly.

The LUMiSpoc® is a new-generation optical single-particle counter and single-particle sizer.

The LUMiSpoc® marries the patented Single Particle Light-Scattering Technology® (SPLS) with hydrodynamic focusing, giving you unprecedented dynamic range and accuracy in the nanometer and micron size particle range.

Single Particle Light-Scattering Technology® (SPLS) is a technique by which both forward and sideward particle scattering characteristics are simultaneously measured and recorded.

To ensure that every dispersed particle is captured and its characteristics recorded without interference from neighboring particles, the LUMiSpoc® uses hydrodynamic focusing.

The instrument features a responsive large touch-screen interface, fully automated cleaning cycles along with many other user-friendly features ensuring a fun and engaging user experience.

Additional sophisticated data analysis can be performed using the powerful SepView software.

The Liquid Particle Counter and Particle Sizer LUMiSpoc uses the patented Single Particle Light Scattering Technology and hydrodynamic focusing allowing you to correctly analyze your nano and micro dispersion.

LUMiSpoc Specifications

Particle Size Range: 40 nanometers to 8 microns

Minimum particle size resolution < 10 nm


Particle Concentration Range: 10^3 ml^-1 to 10^9 ml^-1

Counting Rate: Up to 10,000 particles per second

Particle Counting Precision: < 2 percent

Typical measurement time: 1 min

Light Source: tunable violet diode laser

Dinemsions: 60 cm x 52 cm x 59 cm

Weight: 25 kg

Power Supply: 24 V DC, 220W