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Siloxane Monitoring System (Ei2300)

Precise on-site measurement of siloxanes in biogas, landfill and digester gas

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The Siloxane Continuous Monitoring System is an independent and fully automated measurement system which has been developed to precisely quantify the concentration of linear siloxanes (L2, L3, L4, and L5), as well as the cyclic siloxanes (D3, D4, D5, and D6) in biogas. The instrument separates compounds in two independent stages, combining the selectivity of a Gas Chromatograph with the extraordinary sensitivity (low ppbv) of an Ion Mobility Spectrometer (IMS). Learn more about siloxanes.

  • Two-fold Matrix Separation

              -Gas Chromatograph

              -Ion Mobility Spectrometer (IMS)

  • Precise Measurements

  • Easy to Operate

  • No Analytical Specialist Needed

  • Now supported by a published ASTM Standard, D8455

Available Options
  • Hazardous Rated Enclosure


              -Class 1, Division 2

  • Side Mounted Air Conditioning Unit


              -Class 1, Division 2

  • Remote Access Hardware

              -Cellular Service

              -Secure Cradle Point

  • µTD GC-IMS Thermo-Desorber

              -Automated analyte absorption and thermal desorption (µTD)

              -On-site sub-ppb detection of volatiles

              -Spatial combination of sampling onto adsorption tubes and                thermal desorption with subsequent analysis on-site

              -Improved sensitivity due to analyte enrichment on adsorption                trap

Technical Specifications
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Typical Applications
  • Wastewater Treatment Plants

  • RNG Interconnection Rules Compliance

  • Landfills

  • Dairy Farms

  • Hog and Pig Farms

  • Food Waste Digesters (co-digestion)

  • Others

Available Configurations

Wall Mount

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Available Measurements
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Siloxane System Flyer

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Thermal Desorber Flyer

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Application Questionnaire

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Biogas Analysis Services

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Monitoring Siloxanes GC-IMS vs FTIR Infographic

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