SonoStep - One Step Sonication Of Samples

Ultrasonication helps to disperse agglomerated particles for the preparation and analysis of particle dispersions and emulsions. This is important, when measuring particle size, for example by dynamic light scattering or laser light diffraction.

The application of ultrasonic power to a recirculated sample requires four components: a stirred vessel, an ultrasonic generator and transducer and a pump. All components are connected by hoses or pipes. The schematic to the right shows a typical setup.

The SonoStep integrates ultrasonic power and a centrifugal pump into an agitated stainless steel beaker. The SonoStep is connected to the analytical device - that`s it.

Ultrasonication of your samples improves the accuracy of your particle size or morphology measurement, as the SonoStep performs three important functions:

• De-aeration
• Circulation
• Dispersing / Deagglomeration

The ultrasound de-aerates the liquid and therefore prevents micro-bubbles from interfering with the measurement. It circulates the sample volume at an adjustable flow rate and disperses the particles in the liquid. The ultrasonic power is applied directly under the rotor of the pump and ensures that agglomerated particles are getting dispersed before being measured. This leads to more consistent and repeatable results.