The HR-US pressurising system is also a powerful tool for customers who need to analyse samples at pressures above one atmosphere. Ultrasonic Scientific claims that this makes the product ideal for analysing things such as bubble suppression, allowing samples to be characterised by the ultrasonic spectrometer in their pure, bubble-free state.

This means that the pressurising system can be used to analyse the formation of micelles and composition analysis in solutions of surfactants; heat-induced conformational changes in polymers; and kinetics of chemical reactions with gas producing products/reactants.

The solubility of gases in samples and gas bubbles in liquids can also be analysed by this new system.

The new pressurising system has an internal compressor delivering a desired pressure to each of two cells of HR-US spectrometers. The cells can be pressurised independently or simultaneously for different measurements and two individual pressure outlet lines allow the user to set different pressures in each cell if required.

The pressure is displayed on the front panel and is controlled by a regulator valve. In addition, the pressurising system is supplied with a gas inlet that can be connected to an external line allowing the user to pressurise the samples with a particular type of gas if required.

Ultrasonic Scientific's HR-US range of instruments allow analysis of transparent, translucent and opaque samples, and are non invasive.