Zeta Potential Analyzer

Size range: 0.3nm to 15μm

This span reaches from small molecules and nanoparticles all the way up to larger colloidal particles. It’s broad enough to handle most of what turns up on the bench in pharmaceutical, chemical, and materials science labs relying on nanoparticle size analyzers for routine work.

Minimum sample volume: 3μL

Sample is often the limiting factor, especially with an expensive formulation or an early-stage research batch where there just isn’t much to spare. A 3μL requirement means labs aren’t forced to trade sample conservation for a dependable result.

APD (Avalanche Photodiode) detector

Sensitivity in this system comes down largely to the APD detector, which is built to register faint scattering signals with a good degree of accuracy. That becomes especially relevant with dilute samples, or with particles near the lower boundary of the size range, where weak signals are easily lost on less capable detectors.

Automatic laser intensity adjustment

Rather than manually recalibrating the laser for every new sample, the instrument adjusts intensity on its own. That keeps readings consistent as sample concentration shifts from one run to the next, without adding steps to the process.

Intelligent result evaluation algorithm

Software built into the system interprets scattering data as it’s collected and flags anything that looks like it needs a second look. This takes some of the manual interpretation burden off the operator and helps keep results consistent across different users.

DLS backscattering detection (173°)

Measuring backscatter at 173 degrees cuts down on interference from multiple scattering and sample contamination, both of which tend to show up more in concentrated or otherwise complex samples. It’s a fairly technical detail, but it has a real effect on how dependable zeta potential measurement is once you’re working outside of clean, ideal conditions.

User-adjustable scattering volume

Concentrated samples can be read directly, without dilution, because the scattering volume adjusts to suit. That sidesteps the accuracy problems that diluting a sample can sometimes introduce.

PALS technology

Phase Analysis Light Scattering brings an added degree of precision to zeta potential analysis, particularly with samples where ELS on its own doesn’t offer quite enough sensitivity to get a reliable read.

Programmable temperature control

Particle movement is closely tied to temperature, so being able to program and control it helps keep measurement conditions stable, whether comparisons are being made within the same day or across separate testing sessions weeks apart.