Cavity Ring-Down Spectroscopy Analyzer for Ambient Ammonia - Air Quality, Semiconductors

Picarro CRDS Analyzers for Ammonia (NH₃)

• Simultaneous, precise measurement of NH₃ and H₂O
• PPB sensitivity, precision & accuracy with virtually no drift
• Fast, continuous, real time measurements without interference
• Large dynamic range with high linearity
• Field and laboratory deployable with no consumables
• Installed and operational in minutes
• Rugged and insensitive to changes in ambient temperature

CRDS Analyzer for NH₃ in Ambient Air - G2103

There are an increasing number of air-quality regulations in several countries regarding the presence of trace levels of ammonia in ambient air. These include new standards for air at agricultural facilities, a major source of atmospheric ammonia. This has created a critical need for a field-deployable ammonia sensor that is immune to changes in temperature, pressure and humidity and that does not need frequent calibration or any other type of regular operator intervention.

In addition, low levels of ammonia can be present in ambient air in a semicon fab. Naturally produced by human operators and sometimes from wet chemistry processes, ammonia can cause quality and yield problems such as T topping. It can also cause photochemical damage to optical surfaces. Commercial scrubbers and flow hood technologies are very efficient, but the potential impact means that the filtered air must then be verified and monitored by trace gas analysis instruments

The Picarro G2103 is the only ammonia sensor that meets all these needs in a portable rugged package capable of parts-per-billion sensitivity. It also offers a huge dynamic range, providing linear response well into the ppmv range. No dilution, concentration or other sample prep is required. Therefore, the G2103 can be operated as a remote, unattended monitoring station or used equally well as a laboratory reference instrument.