Particle Size & Zeta Potential Analyzer

AMERIGO is an innovative analyzer for the characterization of nanoparticle suspensions combining into the same instrument Particle Size and Zeta Potential measurements.

It is based on state of the art version of Dynamic Light Scattering (DLS) and Laser Doppler Electrophoresis (LDE) techniques offering high resolution, accurate and rapid measurement.

These two techniques provide complementary information about the nanoparticle solution: the size of the nanoparticles and the stability of the formulation.


PDF icon Amerigo Brochure1.46 MB
Key features & benefits
  • Three-in-one instrument
  • Possibility to perform the measurements in a standard cell…
  • …or using an interchangeable remote heads (see below)
  • Sample compartment designed for standard 10mm x 10mm cuvettes – no specific consumables
  • Measurements in two configurations: backscattering (170°) or transmission (17°)
  • High durability vitreous carbon electrodes
  • Easy-to-use intuitive software
  • Software correlator – dynamic time slicing and data analysis feature
  • Small footprint
Interchangeable measurement heads

In situ Head

In situ head


  • In situ and contactless measurements: no risk of contamination
  • Robust & Compact : easy to integrate in limited access environment
  • Embedded visible alignment laser: easy installation and accurate positioning
  • Adjustable working distance /scattering angle
  • Cost- & Time-saving : no consumable, no tedious batch sampling


  • In situ process monitoring
  • Instrumental coupling

High Concentration Head

High concentration head


  • Based on the Dual Thickness Controller (DTC) technology
  • Ideal for concentrated and/or dark suspensions (inks, emulsions, crude oil, etc.)
  • No consumable : indebted sample cell
  • Online measurement option (on demand)
  • Compact : ability to work in confined environment (glove box)


  • Measurement in controlled environments
  • Routine lab measurements
AmeriQ Software

A software fully-dedicated to nanoparticle size and zeta potential measurements offers :

  • User-friendly and intuitive user interface
  • User-defined Standard Operation Procedures (SOPs)
  • Software correlator
  • Dynamic time slicing option
  • Enhanced and oryginal data treatement algorithms: Multimodal Continuous Algorithm (MCA) and Multimodal Discrete Algorithm (MDA), together with a standard Cumulant method
  • Kinetic size distibution
  • Exhaustive solvent database
  • Reporting module
  • Simulation module

Technical Features

Particle size rangeParticle size: 0.5 nm to 10 um / Zeta potential: 1 nm to 100 µm
Sample concentration0.0001% to 10% w/% (solvent dependent)
Zeta potential range-500 mV to +50 0mV
Temperature control range inside the cell10°C to 70°C; +/-0,1°C (depending on cuvette cell material)
Mobility range10-10 to 10-7 m2/V.s
Sample cellCuvette cell with optical quality windows compatible with organic solvents
Sample volumeTypically 750 µL (Hellma cell: 10 mm light path)
Sample typeAqueous & organic solvents - pH: 1-14 (depending on cuvette cell material)
Maximum sample conductivity300 mS/cm
Optical fiber output (optional)Possibility to connect an external in situ head or DTC head
Signal Processing
Measurement technologyDynamic Light Scattering (DLS) / Laser Doppler Electrophoresis (LDE
Laser sourceHighly reliable 50 mW diode @635 nm coupled to automated  optical attenuation system
DetectorAvalanche Photodiode (APD)
Data processing algorithmReal Time Correlation / Fast Fourier Transform
Measurement anglesParticle size : 170° (backscattering) and 17° / Zeta potential: 17°
ResolutionMobility = 10-10 m2/V.s or Zeta = 0,1 mV ( in water)
Operating conditions / Storage conditions15°C to 40°C / -10°C to 50°C – Relative humidity < 70% non condensing
Computer interfaceUSB 2.0 / Windows 10 / 32 or 64-bit
Dimensions33 cm x 33 cm x 38 cm (HWD)
Weight17 kg
Power supply100-115/220-240 VAC, 50/60 Hz, 100 W max
System compliance
CE certificationCE marked product – Class I laser product, EN 60825-1:2001, CDRH
ISO norm ISO 13321 (1996) & ISO 22412 (2008) compliant, CFR 21 part 11 (option) - ISO 13099-2 : 2012 – Colloidal system – methods for zeta-potential determination – Part 2 : Optical methods
Accessories &amp; Services
2 years warranty
AmeriQ® software & Instruction manual
Remote heads in situ or DTC
Calibration kit (option)