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Zeta potential is a measure of the magnitude of the electrostatic or charge repulsion/attraction between particles, and is one of the fundamental parameters known to affect stability. Its measurement brings detailed insight into the causes of dispersion, aggregation or flocculation, and can be applied to improve the formulation of dispersions, emulsions and suspensions.

Speed of introduction of new formulations is the key to product success. Measurement of zeta potential is one of the ways to shorten stability testing by reducing the number of candidate formulations, hence reducing the time and cost of testing as well as improving shelf life.

In water treatment, monitoring dosage using zeta potential measurements can reduce the cost of chemical additives by optimizing the dosage control.

The measurement of zeta potential has important applications in a wide range of industries including; ceramics, pharmaceuticals, medicine, mineral processing, electronics and water treatment.

Malvern Instruments offer leading instrumentation for the measuring of zeta potential, or electrophoretic mobility. The Zetasizer Nano provides a simple, fast and accurate way to measure zeta potential, and uses a unique disposable capillary cell to ensure that there is no cross contamination between samples. The NanoSight NS500 measures single particle zeta potential distributions which can be measured simultaneously with particle size, concentration and when operating in fluorescence mode.

Related products

Zetasizer range The world's most widely used system for nanoparticle, colloid and protein size, zeta potential and molecular weight measurements. Zetasizer range - particle size, dynamic light scattering, zeta potential, protein aggregation
Measurement
Molecular size, Particle size, Molecular weight, Zeta potential
Temperature range
90°C
Particle size range
0.3nm to 10µm
Dispersion type
Wet
Technology
Dynamic Light Scattering, Static Light Scattering, Size Exclusion Chromatography, Electrophoretic Light Scattering
More information
NanoSight NS500 Single particle zeta potential platform with integrated fluidics for automation. NanoSight NS500 single particle size distribution, fluorescence, zeta potential measurment
Measurement
Particle size, Particle concentration, Protein aggregation, Zeta potential
Particle size range
10nm to 2000nm
Technology
Nanoparticle Tracking Analysis, Electrophoretic Light Scattering
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Metal colloids - their preparation, application and characterization Webinar - Live (English)

Metal colloids represent a very interesting system known since Roman times (the Lycurgus Cup). We'll look at the preparation of these systems looking mainly at gold, silver, and the platinum group metals. All these find extensive application in in...

Product:
NanoSight range,Zetasizer range
Date:
February 18 2016
Language:
English


Suspension stability: Why particle size, zeta potential and rheology are important Webinar - Live (English)

Suspensions or dispersions of particles or droplets in a liquid medium are encountered in a variety of industries and find use in a diverse range of applications. These include liquid abrasives, ceramics, medicines, foodstuffs and inks to name a few....

Product:
Mastersizer range,Kinexus range,Zetasizer range
Date:
February 11 2016
Language:
English


Introducing the New On-line Zetasizer WT - Zeta Potential Clarifies Coagulant Dosing Webinar - Recorded (English)

This webinar organised by IChemE's Water Special Interest Group introduces the Zetasizer WT to the water treatment community. The Zetasizer WT is a robust and practical on-line measurement system that enables optimized coagulant dosing during the wat...

Product:
Zetasizer WT
Date recorded:
January 13 2016
Language:
English


Nanoparticle Tracking Analysis (NTA) Application: Better Understanding Synthetic Nanoparticle Systems Webinar - Recorded (English)

This webinar introduces the Nanoparticle Tracking Analysis (NTA) technique and how it affords useful information in various synthetic nanoparticle systems. We will discuss how NTA was used to measure the effects of certain buffers on the aggregation...

Product:
NanoSight range
Date recorded:
November 17 2015
Language:
English


Orthogonal and complementary nanoparticle characterization techniques Whitepaper (English)

How can I trust my data? Is it affected in any way by the measurement technology, or  by the user through sample preparation or the analysis parameters employed? Independent and orthogonal measurement modalities should be used to provide measurement ...


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Upcoming webinar

Suspension stability: Why particle size, zeta potential and rheology are important
(February 11 2016)

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