AMERIGO - Nanoparticle and Zeta Potential Analyzer

The AMERIGO is a three-in-one equipment engineered to carry out high-resolution nanoparticle size and zeta potential measurements, with the exclusive ability to plug an external remote probe for in situ and contactless measurements. AMERIGO integrates all the technologies and innovations created and patented by Cordouan Technologies.

AMERIGO combines the performances and progressive functionalities of the WALLIS zeta potential analyzer and the VASCO Kin particle size analyzer. This enables the same instrument to be used for high-resolution zeta potential measurements and high-resolution real-time particle size kinetic measurements.

Furthermore, the external in situ remote probe option enables users to “bring the measurement” directly to the sample to carry out contactless measurement without sampling.

Key Features and Benefits

  • Frequency-stabilized laser and Artefact-free Avalanche Photodiode (APD) detector guarantee
    • Very low scattering samples
    • Better measurement accuracy
  • Three-in-one compact instrument: zeta potential, nanoparticle size, and remote in situ measurements
  • Digital correlator—Dynamic time-slicing and post-measurement data analysis features
  • High-durability vitreous carbon electrodes
  • Comprehensive, dedicated software with progressive functionalities
    • Photon-counts storage for time-resolved analysis and post-analysis
    • Complete report including kinetic analysis
    • Easy-to-use interface
  • Improved mathematical models
    • Improved reliability of results
    • 2D color map of size distribution over time
  • Possibility to carry out the measurements in a typical cell (10 mm x 10 mm cuvettes—without any specific consumables) or using interchangeable remote heads (see below)

Main Specifications

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Particle size range
  • Particle size: 0.5 nm up to 10 µm
  • Zeta potential: 1 nm to 100 µm
Sample concentration
  • 0.0001% to 10% w/% (solvent-dependent)
Zeta potential range
  • −500 mV to +500 mV
Temperature control range inside the cell
  • 10 °C to 70 °C; +/−0.1 °C (dependent on cuvette cell material)
Mobility range
  • 10−10 to 10−7 m2/V⋅s
Sample cell
  • Cuvette cell with optical quality windows compatible with organic solvents
Sample volume
  • Typically 750 µL (Hellma cell: 10 mm light path)
Sample type
  • Aqueous and organic solvents; pH: 1–14 (dependent on cuvette cell material)
Maximum sample conductivity
  • 300 mS/cm
Measurement technology
  • Dynamic Light Scattering (DLS)
  • Laser Doppler Electrophoresis (LDE)
Laser source
  • Highly reliable 50 mW diode @635 nm coupled to automated attenuator; other wavelengths available upon request.
Measurement angles
  • Particle size: 170° (backscattering) and 17°
  • Zeta potential: 17°
Data processing algorithm
  • Real-time correlation (DLS)
  • Fast Fourier Transform (Zeta)
Resolution (Zeta)
  • Mobility = 10-10 m2/V⋅s or Zeta = 0.1 mV (in water)
  • Avalanche Photodiode (APD)
Computer interface
  • USB 2.0—Windows 10, 32 and 64 bits
  • 33 cm x 33 cm x 38 cm (HWD)
  • 17 kg
Power supply
  • 100–115/220–240 VAC, 50/60 Hz, 100 W max.

AMERIGO—Nanoparticle and Zeta Potential Analyzer

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