Measuring Infrared Spectra of Concentrated Gases, Gases Mixtures, and Vapors

The StormTM 10 Series is a collection of short pathlength cells, which can be used for the highly accurate IR analysis of gases and vapors, provided they are at a high concentration (of more than 1%).

StormTM 10

The StormTM 10 Series are short pathlength gas analysis cells designed for the analysis of concentrated gases at ambient temperatures. The cells are highly flexible and can be used with a wide variety of gases due to the ability to choose a custom body (stainless steel or Pyrex) and from a large choice of different windows.

Static and flow modes are available for advanced gas analysis making this system useful for generic gas analysis, liquid head space analysis and for the analysis of residual solvent vapors. Gases are introduced to, and released from, the chamber via stopcock valves.

The cell is fitted via a mount, which can work with all modern FT-IR spectrometers and the design, which has a fixed pathlength of 10 cm, can easily be removed from the spectrometer for maintenance and deep cleaning.

Product Highlights

  • Twin taps for evacuation, static or flow-through operation
  • Choice of cell body materials
  • Choice of window materials
  • Demountable design for ease of maintenance
  • 10 cm fixed pathlength single pass design

Specifications

. .
Pathlength 10 cm
Volume 132 cm3 (Pyrex)
114 cm3 (Stainless Steel)
Pressure Range Vacuum to ambient
Temperature Range Ambient
Body Material Pyrex or Stainless Steel
Window Seals Neoprene
Clear Aperture 38 mm
Windows Client to specify
Mount Standard 3” x 2”

 

Applications

  • Analysis of concentrated gases and vapors
  • Liquid head space analysis
  • Residue solvent vapor analysis

StormTM 10H Heated Gas Cell

Like the StormTM 10 the StormTM 10H Heated Gas Cell is a gas cell with a 10 cm pathlength for the IR analysis of concentrated gases and vapors. Where the StormTM 10H differs is that it can be heated to temperatures of up to 250 °C. This makes the cell perfect for decomposition analysis of solids and liquids, and the cell can be operated for flow-through or static experiments.

To account for the high temperature conditions the StormTM 10H has a more complex design with a sample injection section, a port for the thermocouple and seals which are chemically and thermally resistant. The body of the cell itself consists of an evacuable chamber made of robust stainless steel.

To withstand increases in pressure associated with heating, the windows are mounted using threaded end caps and the surrounding seals are resistant to chemical breakdowns. The threaded ends can be removed for the cleaning of the cell, and to replace the windows when needed.

Heating uses a temperature controller, which facilitates a high temperature stability, allowing accurate experiments to take place, and a low voltage heating system. A thermocouple measures the temperature throughout the experiment by direct measurements within the cell cavity. Control of the temperature can be ran through a computer via the cells USB, RS232 and RS485 ports.

Depending on the gases and vapors to be analyzed a wide range of windows are available.

In addition, the StormTM 10H Heated Gas Cell is compliant to European Union regulations meaning it functions safely within its target conditions.

Standard Features

  • 10 cm fixed pathlength single pass design
  • Temperature control to +/- 1 oC
  • Heated operation up to 250 oC
  • Demountable design for ease of cleaning
  • Stainless steel construction
  • Choice of window materials
  • Static or flow

Applications

  • Decomposition studies of solids and liquids
  • Analysis of concentrated gases and vapors

Specifications

. .
Pathlength 10 cm
Volume 114 cm3
Pressure Range Vacuum to ambient
Temperature Range Ambient to 250 °C
Body Material Stainless Steel
Clear Aperture 38 mm
Windows Client to specify
Seals Silicon
Heaters 36 Volts/ 120 Watts
Thermocouple K-type NiCr/NiAl
Mount 3”x 2”
Temperature controller Specac Series 4000

 

This information has been sourced, reviewed and adapted from materials provided by Specac.

For more information on this source, please visit Specac.

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