Zeta Potential Analyzer - Nanoparticle Size Analyzer - 0.3-10000 nm - ±500 mV

The Master Science Zeta Potential Analyzer combines dynamic light scattering particle sizing and electrophoretic zeta potential measurement in a single compact instrument. It sizes nanoemulsions, colloids and suspensions from 0.3 nm to 10 µm and reports surface charge from -500 to +500 mV.

A high-speed digital correlator, sensitive photomultiplier detection and Peltier temperature control to ±0.1 °C give stable, repeatable data for formulation development and production QC.

Technical Specifications

Specifications of the Master Science Zeta Potential Analyzer:

• Brand: Master Science
• Model Number: MSPSA-LS901SWISS
• SKU: MSPSA-LS901SWISS
• Size Range: 0.3 to 10,000 nm (sample dependent)
• Zeta Potential Range: -500 to +500 mV
• Concentration Range: 0.1 to 100 mg/mL (sample dependent)
• Electrophoretic Mobility: > ±20 µm·cm/(V·s)
• Maximum Conductivity: 200 mS/cm (sample dependent)
• Size Accuracy / Repeatability: < 1 % (standard sample D50)
• Zeta Accuracy / Repeatability: < 15 % (standard sample)
• Laser: Semiconductor, 635 nm, 1 to 40 mW adjustable
• Detector: Photomultiplier tube
• Scattering Angles: 90° (size); 18° (zeta)
• Sample Cells: 10 × 10 × 40 mm, 1 to 4 mL (size); 10 × 10 × 60 mm, 1 mL (zeta)
• Temperature Range: 5 to 90 °C
• Temperature Accuracy: ±0.1 °C
• Test Time: < 5 min
• Correlator: 892 autocorrelation channels; 1 µs to 10 ms delay
• Dimensions: 600 × 420 × 210 mm
• Net Weight: 28 kg

Key Benefits

• Size and charge in one bench: the Master Science Zeta Potential Analyzer measures both stability indicators without moving the sample to another instrument.
• Clean photon signal: photomultiplier tubes give high sensitivity and signal-to-noise for weak scatterers.
• Temperature-stable data: ±0.1 °C control prevents viscosity and Brownian motion errors.
• Robust optics: fibre coupling and optical frequency shifting resist interference.
• Fast answers: results are ready in under five minutes.

For larger particles up to 3500 µm, see the Master Science laser particle size analyzer.

Product Features

Measurement

• Dynamic light scattering particle sizing
• Electrophoretic light scattering for zeta potential
• High-speed digital correlator

Detection and Optics

• Photomultiplier detection
• Fibre-coupled optical path
• Optical frequency shifting

Sample Handling

• Peltier temperature control 5 to 90 °C
• Separate cells for size and zeta
• Small sample volumes from 1 mL

Applications

The Master Science Zeta Potential Analyzer is used for:

• Nanomaterial research and fine chemicals
• Emulsions and pharmaceutical formulations
• Surfactants, polymers and oligomers
• Inks, pigments and coatings
• Colloid stability studies in universities

Common Laboratory Problems and How This Analyzer Helps

How the Master Science Zeta Potential Analyzer helps with nanoparticle characterisation:

• Formulations separating on storage: zeta potential predicts dispersion stability early.
• Temperature-driven size errors: precise Peltier control keeps conditions constant.
• Weak signals from small particles: PMT detection improves sensitivity.
• Two instruments for size and charge: one unit measures both.
• Long test times: results are available within minutes.