The H2S/TOS TS MEDOR® is an autoGC-ED (MEDOR® Electrochemical wet cell Detector) for the analysis and monitoring of H2S, TOS and TS.

Different configurations exist depending on the application and concentration range : HS2/TOS TS MEDOR ppb for 0-1 ppm and H2S/TOS TS MEDOR ppm for 0-10 / 0-50 / 0-100 ppm

Principle

• Automatic sampling using a loop
• Automatic loop injection on metallic capillary column
• Isothermal gas chromatograph
• Detection of all compounds eluting from the column performed by MEDOR® detector : Electrochemical wet cell Detector which is a Sulfur Specific Detector (SSD)
• Signal provided by electrochemical reaction between the wet cell electrolyte and the sulfur compounds
• Fully compliant with ASTM D 7493-14 : Standard Test Method for On-line Measurement of Sulfur Compounds in Natural Gas and Gaseous Fuelsby Gas Chromatograph and
• Electrochemical Detection.
• Compliant with ASTM D 5504-20 : Standard Test Method for Determination of Sulfur Compounds in Natural Gas and Gaseous Fuels by Gas Chromatography and
• Chemiluminescence with alternative detector.

Key points

• Continuous monitoring with automatic online sampling
• Analytical performances :
  - Specific, linear and very sensitive to sulfur compounds
  - Results validation by automatic standard injection
  - Long term stability using detector installed in reservoir
• Extremely low maintenance :
  - Very long life time detector with electrolyte, up to 10 years.
  - Low gas consumption, can be reduced in option
  - More than 10 years data storage
  - No cylinders required thanks to internal calibration tube and gas generators
• Automatic control with process device
• Intelligents system with tunable and interactive alarm levels
• Powerful VISTACHROM Chromatotec® software :
  - Remote monitoring & injection control
  - Full traceability with on board archiving of results and chromatograms