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  • Measure, analyse, control


    Measure, analyse, control

    The systems we supply are used at all stages in research, development and manufacturing

    Our systems enable you to measure, analyse and control a broad range of properties and characteristics across a wide range of sample types.

mixSorb S series – breakthrough curve analyser

The mixSorb S series provides unique capabilities to investigate novel materials, like MOFs, COFs etc. by mixed gas adsorption. Novel materials are in the focus of research in recent last years. These materials can have very high selectivity’s due to their extraordinary surface chemistry and have to be investigated by mixed gas sorption for a deeper understanding of their sorption behaviour.

In contrast to the mixSorb L series, the mixSorb S series is designed for very small sample amounts (powders). Especially R&D groups have now the possibility to measure newly synthesized materials by complex dynamic sorption processes in a wide field of different gas- and gas/vapor-mixtures by using different parameters like pressure, temperature gas velocity/dwell times, cycle tests and much more. These experiments allow to get data, next to the effective adsorption performance, of kinetics, co-adsorption phenomenon or displacement effects, sorption selectivity’s, data of gas mixture adsorption and heat balance of the sorption process.

By using the available vapor option it is possible to work up to 2 completely independent evaporators to form fully automated individually gas/vapor mixtures fully automated. These data allow a profound look at the co-adsorption phenomenon or displacement effects.

The related modelling software 3P sim made it possible to calculate and to modify pure gas isotherms as well as breakthrough curves and to calculate the behaviour of gas/vapor-mixture equilibria.

An overview of the models of the mixSorb S series can be found below:



S ecoS ambientSHP eco


Pressure range

0.1 – 10 bar

0.1 – 10 bar0.1 bar – ambient0.1 – 35 bar

0.1 – 68 bar

No. of MFCs

2 – 4

Required inlet pressure

15 bar

15 bar15 bar85 bar

85 bar

No. of Evaporators

Up to 2

Pressure control




Simulation Software




Gas sensor





Incl. 13 factory calibrations

Incl. 1 factory calibrationIncl. 13 factory calibrationsIncl. 1 factory calibration

Incl. 13 factory calibrations

Sample bed temperature sensors

Up to 4

Sample loading

< 0.1 cm³ – 5 cm³, customized adsorbers on requests

Temperature range heating mantle

Ambient – 400 °C

Temperature range circulator bath

-20 °C – 90 °C


  • Determination of breakthrough curves
  • Investigation of co-adsorption and displacement
  • Determination of sorption selectivity
  • Estimation of applicability of synthesized materials in technical processes
  • Dynamic adsorption and desorption experiments
  • Determination of single- and multi-component adsorption data
  • Investigation of kinetic performance of novel materials
  • In-situ sample preparation up to 400 °C
  • Fully automated control via PC by using mixSorb Manager
  • Automated regulation of the adsorber pressure up to 8 bar
  • Up to 4 high precision mass flow controllers
  • Automated built-in gas and gas/vapor mixing
  • Measurement of inlet and outlet gas composition
  • Tempering of sample cell by thermostat automatically
  • Monitoring of pressure drop along the sample cell
  • Built-in Thermo Conductivity Detector (TCD); optional gas analysis via interfaced Mass Spectrometer
  • Safety guard sensor for flammable gases for automatic shut down
  • Enhanced Safety by intelligent illuminated workspace