ZETA-901 nano particle size and potential analyzer is a new & advanced analyzer uses dynamic light scattering principle for particles determination, it has testing capabilities like zeta potential, nano-particle size, concentration, and molecular weight.

ZETA-901 uses electrophoretic light scattering technology to measure zeta potential and obtain isoelectric point, and uses Static Light Scattering (SLS) techniques measure molecular weight. Compared with other instruments of the same level, it has significant advantages, and can be used in various experiments in conjunction with the laser particle size distribution analyzer.

ZETA-901 particle size and zeta potential analyzer has both zeta potential and nano particle size analysis functions. It is suitable for particle size and surface potential measurement of a variety of different nano emulsions, suspension colloids, etc. It can be widely used in fine chemical industry nanomaterials, research and production quality control of surfactants, oligomers, etc. It is also a good tool for quality control testing for inks, pharmaceutical preparations, and other industries. It can meet your entry-level testing needs, also be OK for advanced measurement.

1.       Test Principle: using the principle of electrophoretic light scattering and photon correlation spectroscopy, the particle size and Zeta potential be determined according to the electrophoretic movement speed of particles in liquid. The population velocity of the electrophoretic motion of the particles, and the amount of doppler shift of the scattered light caused by the laser irradiation of these particles, varies. Photon correlation spectroscopy analyzes the size of particle Zeta potential according to the frequency shift. 

2.       Ultra-high-speed Data Acquisition: the core component of the instrument is through the HA1024 digital correlator, which can complete the collection of electrophoretic scattered light intensity and the calculation of the auto-correlation function in real time, to effectively reflect the information of the electrophoretic movement speed of the particles and lay the foundation for the accuracy of the Zeta potential test results.

3.       High Sensitivity Signal-to-noise Ratio: using professional-grade high-performance photomultiplier tubes, have extremely high sensitivity and signal-to-noise ratio to photon signals.

4.       High Precision Constant Temperature Control: using semiconductor temperature control technology, the temperature control accuracy is as high as 0.1 °C, so that the sample is always in a constant temperature state during the whole test process, avoiding the test deviation caused by the change of liquid viscosity and Brownian motion caused by temperature changes, and ensuring the accuracy and stability of the test results.

5.       Stable Optical Path System: the optical path system constructed by the optical frequency shifting device and the optical fiber coupling technology makes the detection system not only small in size, but also has strong anti-interference ability, thus guarantee the testing stability.

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