Dynamic Vapor Sorption (DVS)

  

DVS Intrinsic Plus

The DVS Intrinsic is the latest dynamic gravimetric water sorption analyser from Surface Measurement Systems.
The Intrinsic was specifically designed to meet the needs of the small to mid-sized laboratories and plants.
It combines ease of use with a low capital investment and maintenance burden.

The system incorporates the SMS UltrabalanceTM, and industry leading electronics. The user interface combined
with the step-by-step software wizards yield high performance with minimal operator training. The unit’s small
footprint makes optimal use of limited bench top space. Via DVS-IntrinsiLinkTM, one PC can operate up to
5 DVS Intrinsic units at the same time.

Surface Tension Meterquote

Applications

Studying hygroscopicity of powders, fibers and solids
Kinetics of water sorption and desorption
Water induced morphology changes
Food shelf-life prediction studies
TEWL/Transepidermal Water Loss
Calculation of Diffusion Coefficients
Sorption Modeling
Water Activity Measurements
DVS Application Notes and Case Studies

 

 DVSAdventure  

New !  DVS Adventure

The new DVS Adventure is a water vapor sorption analyzer that measures sorption and desorption
isotherms over  a broad range of humidities and temperatures. It offers unprecedented temperature stability and humidity performance.
It provides valuable information about the interactions of a sample with water vapor that is critical for the
development of new materials and processes. For example, in many industries water sorption properties of raw materials are considered as a key parameters in determining their storage, stability, processing and application performance.

Weight Based Measurement of Contact Angle, Surface and Interfacial Tensionquote

 

Applications

Studying hygroscopicity of powders, fibers and solids
Kinetics of water sorption and desorption
Food shelf-life prediction studies
TEWL/Transepidermal Water Loss
Calculation of Diffusion Coefficients
Water Activity Measurements
DVS Application Notes and Case Studies

 DVS Resolutions  

 New !  DVS Resolution

The new DVS Resolution is a Dual Vapor Gravimetric Sorption Analyzer. A key feature of DVS Resolution is the
combined ability to precisely control and measure temperature and relative humidity while recording the highest
resolution changes in mass. DVS Resolution uses a dry carrier gas typically nitrogen or compressed air for its operation.
Digital mass flow controllers regulate flows of dry and saturated gases. Relative humidity is generated by precisely mixing
dry and saturated gas flows in desired flow ratios which produce expected relative humidity.

In a typical experiment a known concentration of water vapor is delivered over a sample placed inside the sample pan
connected to the Surface Measurement Systems Ultrabalance™ measuring realtime mass changes caused by sorption
or desorption of water molecules. Prior to sorption measurements, the sample can be in-situ preheated/dried at
temperatures of up to 300oC. Additionally, the sample chamber and water vapor generation are at thermal equilibrium
in a single temperature enclosure allowing for operation over the entire temperature range (5-85 oC) without risk of condensation.

Weight Based Measurement of Contact Angle, Surface and Interfacial Tensionquote

 

Applications

Studying hygroscopicity of powders, fibers and solids
Kinetics of water sorption and desorption
Water induced morphology changes
Food shelf-life prediction studies
TEWL/Transepidermal Water Loss
Calculation of Diffusion Coefficients
Sorption Modeling
Water Activity Measurements
DVS Application Notes and Case Studies

 DVS Endeavour  

 New !  DVS Endevor

5X Parallel Gravimetric Sorption Analyzer
A key feature of DVS Endeavour is the ability to precisely control and measure temperature and relative humidity
while simultaneously recording the highest resolution changes in mass on up to 5 samples. Additionally Organic vapor
partial pressures can now be directly measured using Surface Measurement Systems’ Ultrasonic sensor (patent pending).
In a typical experiment a known concentration of water vapor or organic vapor is delivered over a sample placed inside
the sample pan. The sample pan is connected to the Surface Measurement Systems Ultrabalance™ measuring real-time
mass changes caused by sorption or desorption of water and/or organic molecules

Weight Based Measurement of Contact Angle, Surface and Interfacial Tensionquote

 
 

Applications

Studying hygroscopicity of powders, fibers and solids
Kinetics of water sorption and desorption

DVS Application Notes and Case Studies