An ammonia gas analyzer measures NH₃ concentrations in industrial process gases and flue gas emissions. It is widely used for ammonia slip monitoring, environmental compliance, and industrial process control.

A TDLAS ammonia analyzer emits laser light at a wavelength corresponding to an NH₃ absorption line. It analyzes the laser absorption signal to calculate ammonia concentration.

SCR and SNCR systems inject ammonia or ammonia-based reagents to reduce NOₓ emissions. Monitoring residual NH₃ helps evaluate ammonia slip, optimize reagent injection, and prevent excessive ammonia emissions.

Ammonia slip refers to unreacted ammonia remaining in flue gas after the denitrification process. Excessive ammonia slip can contribute to secondary pollution, ammonium salt formation, and equipment fouling.

Yes. ESEGAS can configure NH₃ analyzers with a typical 0–10 ppm range for emission-monitoring applications. For ambient air quality monitoring (AQMS), ppb-level configurations are also available. The achievable range and detection limit depend on the analyzer configuration and application requirements.

Ammonia is highly soluble in water. If moisture condenses during sampling or measurement, NH₃ can dissolve in the condensate, causing lower-than-actual readings. Ammonia can also adsorb onto internal surfaces, delaying the measurement response.

To reduce these losses, ESEGAS heats the internal measurement cells of its extractive NH₃ analyzers to above 180°C. This helps prevent condensation and reduce surface adsorption, supporting more reliable ammonia measurements.

Heating the measurement cell alone is insufficient if condensation occurs upstream. The sampling probe, filters, transfer line, and connections should also maintain suitable temperatures without cold spots. The required temperature depends on sample moisture, pressure, and gas composition. Conventional cooling and water removal should be avoided unless the system has been validated to preserve NH₃concentration.