Labcell has introduced the Aquasorp isotherm generator, designed to produce accurate adsorption and desorption isotherms in 24 hours or less.
The Aquasorp utilises Dynamic Dewpoint Isotherm (DDI) technology to give quick and detailed information that offers users a better understanding of the water interactions within the material being analysed.
In just 24 hours, the Aquasorp creates a set of isotherms with hundreds of data points, excellent resolution and without any user intervention.
This is in contrast to the traditional method of using temperature-controlled humidity chambers and balances to establish when equilibrium has been reached.
It often takes one to three weeks - or sometimes up to five - to create isotherms this way, with only a very limited number of points on each plot.
For companies that have a limited budget, the Aquasorp can operate as a water activity analyser.
After the sample has been prepared, it is placed in the instrument and the water activity is established in a matter of minutes.
In either operating mode, the instrument has a water activity range of 0.10 to 0.95aw (10 to 95 per cent relative humidity), an accuracy of +/-0.005aw and a repeatability of +/-0.003aw.
To demonstrate the instrument's capabilities - and to provide an ad hoc service for clients that cannot justify purchasing their own instrument - Labcell offers an Isotherm Generation Service that enables a client's sample to be received and results returned within one week.
