Near UV-VIS DOAS Gas Analyzer

Differential Optical Absorption Spectrometry (DOAS) is a UV/VIS optical measurement technique based on Beer-Lambert’s Law. Since absorption coefficients in the UV are generally orders of magnitude higher than in the IR region, sensitivity is usually enhanced, which makes DOAS a method for measuring relatively low concentrations.

Nitric Oxide (NO)Benzene (C6H6)Ozone (O3)
Nitrogen Dioxide (NO2)Toluene (C7H8)Napthalene (C10H8)
Sulfur Dioxide (SO2)Xylene (C8H10)Carbon Disulfide (CS2)
Ammonia (NH3)Styrene (C8H8)Chlorine (Cl2)
  • Ultra High Accuracy & Sensitivity
  • Cross stack Non Intrusive
    • No parts located in process stream
    • No corrosion
    • No particulate buildup on probe
    • Do not have to pull heavy analyzer off of stack port
  • Immediate Response Time
  • Minimal Maintenance & consumable parts required
    • Clean optics enclosure windows periodically
    • Lamp .5-2 Years
  • Meets & exceed EPA Performance Specifications
    • Calibration and Certification/RATA Requirements per 40 CFR Part 60 regulations
  • Compact & Easy to Install and Operate
    • Low Operating Costs

DOAS Uses broadband UV light source instead of a laser light source so Multiple gases can be measured with a single analyzer!

  • Email
  • Phone
  • Fax
  • Address
    Memeco Sales & Service
    6677 N Lincoln Ave
    Ste 230
    Lincolnwood, IL 60712