Analytical Instrument Moisture Content
In food manufacture and processing, moisture content and water activity are generally measured using separate analytical instruments. Combining the two analyses in one instrument can save time and labour.
Decagon’s new AquaLab Series 4TE DUO now makes it possible to measure both water activity and moisture content using proven water activity measurement technology.
To measure moisture content using water activity requires an understanding of the relationship between the two parameters. This relationship, referred to as the moisture sorption isothem, is complex and unique to each product type. It must be determined experimentally by measuring water content content at several water activity values.
The AquaSorp isotherm generator can rapidly generate robust isotherms with complete data resolution. Once the isotherm has been generated, it can be loaded into the AquaLab Series 4 DUO and used to determine moisture content based on a water activity measurement generated by the instrument.
For more information and free application note, please contact:
Carlos Vieira
Product Manager
Decagon Devices Inc.
2365 NE Hopkins Court
Pullman, WA 99163 USA
Phone: +1-509-332-2756 (Ext. 1260) or +1-509-332-5656
carlos@decagon.com - http://www.aqualab.com ONE INSTRUMENT PROVIDES MEASUREMENTS OF BOTH WATER ACTIVITY AND MOISTURE CONTENT
AMS Instrumentation & Calibration has been appointed exclusive distributor for the Michell Instruments range of analytical instrumentation for Australia.
AMS has recently formed three internal divisions: Calibration hardware and software; Flow, pressure and level instrumentation; and Analytical. Additional announcements regarding appointments for other analytical companies are expected in the near future.
Michell Instruments manufactures dewpoint transmitters, cooled mirror hygrometers, relative humidity sensors, process moisture analysers, hydrocarbon dewpoint analysers, moisture in liquid analysers and oxygen analysers. The company is an international leader in high-precision sensing with over 30 years’ experience in the field.
The Michell range of high-precision capacitive moisture sensors helps users to measure trace moisture in their process applications, while the relative humidity transmitters and relative humidity and temperature sensors are suitable for use in HVAC applications, pharmaceutical storage and other production processes where controlled environmental conditions are crucial.
Michell also offers humidity calibration systems and reference dewpoint hygrometers which enable users to carry out calibration of portable hygrometers and relative humidity instruments in-house.
The company also offers high-speed measurement of oxygen in a range of applications, including combustion optimisation for power stations, controlling levels of CO2 for breweries and clean-gas processes, such as silicon wafer production and pure gas generation.
Analysers for moisture in hydrocarbon liquids are available in explosion-proof, intrinsically safe and laboratory versions, and allow the continuous measurement of the moisture content in a wide range of hydrocarbon liquids, including transformer oil, hydraulic oil, petrochemical fractions and pure hydrocarbons.
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