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GasRaman NOCH-1 High Performance


Does your work involve developing gas-phase monitoring processes? The NOCH-1 spectrometer analyzes gases faster, more easily, and with lower maintenance than traditional techniques like Gas Chromatography (GC). Our gas phase process Raman spectrometer accurately identifies and quantifies gases with excellent sensitivity, but without the hassle or price tag associated with alternative methods. Combined with our flexible software, the GasRaman NOCH-1 spectrometer is an ideal system for process development.


Product Details

The GasRaman NOCH-1 gas phase process Raman analyzer instrument features a diode-pumped solid state (DPSS) laser. The graphic user interface of the control and data acquisition program includes a time trend and ratio calculate in a time chart mode to enable spectral changes with time to be observed.

The NOCH-1 GasRaman spectroscopy system provides fast and accurate laboratory and online gas phase Raman analysis, with no extractive sampling required.


  • Natural gas
  • Biofuel
  • Methanol from natural gas
  • Combustion monitoring
  • Gasification process monitoring
  • Well-head monitoring for exploration and production

The right GasRaman NOCH-1 for your application

TSI offers two NOCH-1 Raman spectrometer models to choose from, based on the laser power you require.

Model Laser Wavelength Range Laser Power Average Spectral Resolution Detector Temperature
GASR-NOCH-1 532 nm 250-4200 cm-1 0-150 mW 10 cm-1 -60 deg C
GASR-NOCH1-01-HP 532 nm 250-4200 cm-1 0-300 mW 10 cm-1 -60 deg C

Features & Benefits

  • High Rayleigh rejection fiber optic probe
  • High resolution spectrometer 
  • Rapid, easy measurements
    • Much faster than Gas Chromatography (GC)
    • No extractive sampling
  • Faster cycling time
  • Less maintenance
  • Accurate identification and quantification
  • Excellent sensitivity
  • Not altered by water vapor