IGAsorp SELECT
Dynamic Vapor Sorption Analyzer
Fully automated compact benchtop DVS analyzer for fast & accurate sorption measurements
The IGAsorp Select is a fully automated compact benchtop DVS analyzer, for fast and accurate vapor sorption measurements using the dynamic flow technique for water and organic solvents. Measured vapor uptake isotherms and kinetics are used to characterize, test and evaluate materials in precisely defined environmental conditions.
An ultra-sensitive microbalance measures changes in sample mass as a function of humidity and temperature. Humidity is determined by relative mixing of wet and dry gas streams, and is measured and regulated at the sample position. These factors combine to offer unrivalled performance and total baseline stability.

The IGAsorp’s sample reactor, vapor generator and humidity sensor are all housed in a dedicated measurement chamber – machined from a single block of aluminium to minimize temperature gradients. This measurement chamber is precisely temperature controlled from 5 to 50 °C. Engineered for ±0.01 °C stability, it ensures consistent and reproducible results over extended durations.
The well-proven split flow technique is used in conjunction with computerized feedback control to regulate humidity in the sample reactor. A rapid response relative humidity (RH) sensor and accurate flow controllers ensure high accuracy and control of ±0.01 %RH from 0 – 98 %RH. Sensor placement at the sample ensures true local humidity control.
And with the organics upgrade, sorption capability is extended out to include a wide range of organic solvents.

Every IGAsorp uses a high precision microbalance engineered by Hiden Isochema to record sample mass changes as the environmental conditions change. Renowned for long-term stability and exceptional sensitivity, it enables detection of microgram-level weight changes. With balance temperature controlled separately from measurement temperature, you can trust every data point.

HIsorp is the all-in-one platform for sorption analysis, covering everything from method setup to deep data insights. Fully supported and Windows compatible, it’s built for reliability and future ready performance.
Flexibility: Create multi-step routines for isothermal sorption, thermal desorption, cyclic testing and more.
Advanced control: Configure multi-step routines with full control over temperature, vapor pressure and flow rates.
Analysis tools: Real-time isotherm updates, kinetic modelling, surface area calculations, thermodynamic evaluations and more.
Data Security: Optional 21 CFR Part 11 compliance with secure access, audit trails and user management.

Stability and Compatibility Assessments of Pharmaceutical Materials
High Precision Moisture Sorption Data for Porous Materials
Operation Relevant Water Sorption Analysis for PEM Fuel Cell Components
Assessing Barrier Performance of Polymers with Sorption and Permeability Measurements
Controlled Humidity Moisture Testing for Construction Materials
Using Dynamic Vapor Sorption to Understand Industrial Drying Processes
Application Note 114 – Climatic Testing of Electrical Components
Application Note 116 – An Equilibrium and Kinetic Sorption Study of the Interaction of Amorphous Trehalose with Water
Application Note 119 – Measurement of Water Sorption Properties of a Cracker Sample
Application Note 121 -Dynamic Vapour Sorption Characteristic and MVTR Properties in Pharmaceutical Materials
Application Note 124 – Concentration Dependence of the Microscopic Mobility of Water in Polymer Membranes
Press Release – Powerful New DVS Control Method from Hiden Isochema
Press Release – Improved Humidity Conformance Testing for DVS Analyzers

