Emulsions and dispersions like paints and coatings, inks, emulsifiers, personal care products, and even foods like milk are heterogeneous, colloidal systems requiring analysis over time for their temperature-dependent optical stability and aging behavior. Using the new MultiScan MS20 from DataPhysics Instruments (Charlotte, NC), stability and aging characteristics of emulsions & dispersions can be performed automatically and operator-independently from +4°C to +80°C. By measuring light-energy transmission through the samples and also the sample’s backscattering rate using an NIR-emitting LED source, behaviors such as sedimentation and creaming, speed of the creaming process as well as the position-dependent change of particles and drop sizes of multi-phase systems can be easily and accurately monitored.
The modular MS20 allows for connection and simultaneous analysis from one to as many as six samples via independent, temperature-controlled sample scanning towers. Additionally, a special barcode-reading system plus the user-friendly software guarantees the seamless documentation of each individual measurement, evaluation and error analysis, as well as the graphical presentation and the export of results.
The new MS20 ensures fast and precise analysis of the stability and aging behavior for a wide range of emulsions and dispersions and is a valuable tool for their research, development and quality assurance.