Made to order
- Installation & training on-site setup and titration-workflow onboarding
- Method + sample run a zeta and titration measurement on your own sample
Microtrac STABINO ZETA Zeta Potential and Charge Titration Analyzer
Zeta potential and surface charge by streaming potential, with built-in titration — five parameters at every point, particles 0.3 nm to 300 µm, up to 40 % concentration.
- pH, polyelectrolyte and salt titration in 5–15 minutes
- Add a NANOTRAC FLEX probe for particle size in the same sample
- Installation and on-site training included · free test measurement
- Configured to order · lead time from 4 weeks
What your nano lab actually checks
Fast charge titration, 5 params at once
Every measuring point returns zeta potential, streaming potential, conductivity, pH and temperature. A pH, polyelectrolyte or salt titration to the isoelectric point runs in 5–15 minutes with hundreds of data points — on concentrated samples up to 40 vol%, no heavy dilution.
An applications engineer on the line
- STABINO ZETA base unit — PTFE measuring cup with oscillating piston, two electrodes, built-in titration with two titrant reservoirs
- Measuring cells: 10 mL (black), 1 mL and 3 mL with pestle
- Tempered measuring cell for 0–90 °C
- Piston set: 100, 200, 400, 1000, 1200, 1500 and 2000 µm, and conical
- NANOTRAC FLEX probe for size distribution in the same cell
- Installation and on-site operator training — included in every quotation
What the STABINO ZETA is
The STABINO ZETA is a zeta potential analyzer from Microtrac that works by streaming potential instead of electrophoresis. The sample goes into a cylindrical PTFE cup, where an oscillating piston moves the liquid while the particles stay immobilized at the cup wall. The flow displaces the ion cloud around the particles, and two electrodes measure the resulting charge separation; after calibration it is reported as streaming potential or zeta potential, together with conductivity, pH and temperature. Titrants are dosed by built-in pumps, and the constant mixing homogenizes each step quickly and keeps the sample from settling, so a full titration takes minutes rather than hours.
Specifications
| Method | zeta streaming potential |
| Calculation model | none, as calibrated |
| Measurement angle | none, mechanical measurement |
| Zeta range (charge) | −3000 to +3000 mV |
| Zeta range (size) | 0.3 nm – 300 µm |
| Electrophoretic mobility | max. 14 (µm/s)/(V/cm) |
| pH range | 1 – 14 |
| Conductivity range | up to 350 mS/cm |
| Temperature | 0 – 90 °C, ±0.1 °C, controlled |
| Titration | pH, polyelectrolyte, salt · endpoints pH, zeta potential, conductivity, volume and time |
| Reproducibility (zeta) | 2 % with standard dispersion |
| Sample cell | Teflon, 10 mL, 3 mL, 1 mL |
| Sample volume | 0.95 – 10 mL |
| Sample concentration | up to 40 % |
| Carrier fluids | water, polar organic solvents, acid and base |
| Size measurement | only in combination with the NANOTRAC FLEX |
| Humidity | 90 % non-condensing |
| Dimensions (W × H × D) | 180 × 300 × 260 mm (7.1 × 11.8 × 10.2 in) |
| Installation and training | on site, included in every quotation |
| Lead time | from 4 weeks, depending on configuration |
Download: STABINO ZETA datasheet (PDF) · Application notes: CBD nanoemulsions, flocculant optimization, carbon compounds (PDF)
What it tells you about surface charge
Zeta potential is the usual measure of the electrostatic repulsion that keeps particles apart. Titration shows how it changes:
| pH titration | the isoelectric point and the stable pH ranges |
| Polyelectrolyte titration | charge density, zero point of charge and the right dose of dispersant |
| Salt titration | zeta potential as a function of conductivity |
| With a NANOTRAC FLEX | particle size during the titration — the critical agglomeration point becomes visible |
Examples from Microtrac application notes: a five-pass CBD nanoemulsion measured −16.2 mV at pH 5.12 and reached its zero point of charge after 0.62 mL of 0.001 N P-DADMAC, with the FLEX showing the size rise at the same moment. In recycling the water of a magenta pigment suspension, charge titration showed that FeCl3 pre-treatment above 30–40 % was not effective, and two-thirds of the FeCl3 could have been saved. On carbon black, polyelectrolyte titration separated non-, mildly and strongly oxidized samples by their surface charge.
Three things that make the titration fast
Where the STABINO ZETA stops — and what to take instead
The STABINO ZETA measures charge, not size: a particle size distribution needs the NANOTRAC FLEX probe in its cell. Streaming potential relies on the ion cloud particles form in polar liquids, and the listed carrier fluids are water, polar organic solvents, acids and bases — non-polar solvents are not among them. For zeta potential and DLS size in one benchtop instrument, from 150 µL of sample, the NANOTRAC WAVE II is the alternative. And to follow how a formulation separates over time, the TURBISCAN LAB measures physical stability directly.
In pictures
Availability, payment and delivery
Why buy it through Additive Plus
What usually stops people — and the honest answer
Ready when you are
| Brand | Microtrac |
| Country of origin | Germany |
| Method | Zeta streaming potential |
| Calculation model | none, as calibrated |
| Measurement angle | none, as mechanical measurement |
| Size measurement | yes (only in combination with NANOTRAC FLEX) |
| Sample cell | Teflon (10 ml, 3 ml, 1 ml) |
| Zeta potential analysis | yes |
| Zeta streaming potential analysis | yes |
| Zeta measurement range (charge) | -3000 mV - +3000 mV |
| Zeta measurement range (size) | 0.3 nm - 300 µm |
| Electrophoretic mobility | Max. 14 (µm/s) / (V/cm) |
| pH measurement | yes |
| pH measurement range | 1 to 14 |
| Conductivity measurement | yes |
| Conductivity range | Up to 350 mS cm^-1 |
| Temperature range | 0°C - 90°C |
| Temperature accuracy | ± 0.1°C |
| Temperature control | yes |
| Titration | yes |
| Titration endpoints | pH, zeta potential, conductivity, volume and time |
| Reproducibility (size) | Refer to NANOTRAC FLEX |
| Reproducibility (zeta) | 2% with standard dispersion |
| Sample volume zeta measurement | 0.95 ml - 10 ml |
| Sample concentration | Up to 40 % |
| Carrier fluids | Water, polar organic solvents, acid and base |
| Humidity | 90 % non-condensing |
| Dimensions (W x H x D) | 7×11.8×10.2 in / 180×300×260 mm |
Download Microtrac STABINO ZETA Zeta Potential Analyzer Product Info brochure
Download Microtrac STABINO ZETA Zeta Potential Analyzer Application Note 1 brochure
Download Microtrac STABINO ZETA Zeta Potential Analyzer Application Note 2 brochure
Download Microtrac STABINO ZETA Zeta Potential Analyzer Application Note 3 brochure
We run this lab daily. Send a sample.
Send us a powder sample and we'll run PSD and morphology on the actual instrument, then share the data and method — so you see repeatability before you buy. We can also run analysis as a service while you evaluate.
Other products teams run alongside Microtrac STABINO ZETA Zeta Potential and Charge Titration Analyzer
Nanoparticle size from 0.3 nm to 10 µm with a dip-in DLS probe — any vessel, from one drop, up to 40 % concentration, at line or in line.
- Size, concentration and molecular weight in one measurement
- FlowGuard for stirred and flowing liquids · no cuvettes
- Installation and on-site training included · free test measurement
- Configured to order · lead time from 4 weeks
Made to order
· Lead time from 4 weeks · installation included
Droplet and particle size of sprays, mists and airborne powders by laser diffraction — 0.5 to 2000 µm, measured as the spray forms at intervals from 0.02 ms.
- D50, SMD and density index over time · multiple scattering correction standard
- F100, F300 and F600 lenses · fixing jigs · batch cell for slurry
- Installation and on-site training included · free test measurement
- Configured to order · lead time from 4 weeks
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Micropore-capable BET surface area and pore size analyzer — isotherms from P/P₀ = 10⁻⁸, pores 0.35 to 500 nm, krypton down to 0.0005 m²/g.
- One measurement port with dedicated p₀ and free-space ports, AFSM™ accuracy
- BET, BJH, HK, SF and NLDFT / GCMC analysis in BELMASTER 7
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Compact BET surface area and pore size analyzer — up to four samples at once, from 0.01 m²/g with nitrogen, pores 0.7 to 500 nm.
- Each port with its own transducer, helium-free AFSM™2 measurement
- Quick BET: three-point BET of several samples in about 15 minutes
- Installation and on-site training included · free test analysis of your sample
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Atomize your own alloy, measure the powder and print it — the ATO Lab, the Microtrac CAMSIZER X2+ and the AO Metal A50 as one materials-development cell from one supplier.
- ATO Lab: 20–120 µm spherical powder, oxygen below 10 ppm
- CAMSIZER X2+: size and shape from 0.9 µm to 8 mm in 1–3 minutes
- A50: Ø50 × 100 mm LPBF, every laser parameter open
- Installation and training included · 8–14 weeks · 12-month warranty
Made to order
· Lead time 8–14 weeks · installation included
True (skeletal) density of powders and porous solids by gas displacement — helium or nitrogen, 10, 3.5 and 1 cm³ sample cells.
- Accuracy 0.03% of full scale + 0.03% of reading · repeatability 0.02%
- Benchtop, 8 kg · the reference value for porosity calculations
- Installation and on-site training included · free test analysis of your sample
- Configured to order · lead time from 4 weeks
Made to order
· Lead time from 4 weeks · installation included
Particle size and 3D shape measured in your process line, not in the lab — 30 µm to 30 mm, with a result every 5 to 10 minutes in the control room.
- More than 35 3D size and shape parameters, built for correlation with sieving
- IP66 stainless steel enclosure, self-cleaning, unattended SOP operation
- Installation and on-site training included · free test measurement
- Configured to order · lead time from 4 weeks
Made to order
· Lead time from 4 weeks · installation included
Laser diffraction and dynamic image analysis on the same sample, in the same cell, at the same time — size from 0.01 to 4000 µm and more than 30 shape parameters in a typical 10 to 30 seconds.
- Oversize, sphericity and satellites in metal AM powder, alongside the ISO 13320 size distribution
- FLOWSYNC wet and TURBOSYNC dry modules, changed in less than 15 seconds
- Installation and on-site training included · free test measurement
- Configured to order · lead time from 4 weeks
Made to order
· Lead time from 4 weeks · installation includedWhat our customers say
“Harry and team were professional, effective communicators as we set up the order, then they executed quickly and produced an amazing product for us at a very competitive price. Am looking forward to our next print w Additive Plus!”
“Great 3D printing service and the resin parts look super smooth and clean. Really happy with how everything turned out!”
“Harry was very professional and helped me out with my 3D printing needs and explained what options I have in terms of filaments such as PEEK. Highly recommended.”
“I needed a 3D enclosure printed urgently in a specific time period, they did great!”
Common questions
Don't see yours? Email [email protected] — NDA on request, typical reply within 4 hours.
What does the STABINO ZETA measure?
How is streaming potential different from electrophoretic zeta measurement?
What titrations can the STABINO ZETA run?
Can it measure concentrated samples?
Can I measure particle size at the same time?
How much sample does it need, and how easy is it to run?
Can it find the right flocculant or dispersant dose?
How much does a STABINO ZETA cost?
Can I test my sample before buying?
What is the lead time, and what comes with the STABINO ZETA?
Place your order, or talk to an engineer first
Order Microtrac STABINO ZETA Zeta Potential and Charge Titration Analyzer direct, or talk to materials engineer