Ammonia Analyzer

Specification of Ammonia Analyzer

LGR's new Ammonia Analyzer - Trace (AAT) provides fast measurements of ammonia in ambient air with unparalleled precision, sensitivity and time response. No longer do you have to wait for minutes before getting a reliable reading – LGR’s AAT provides measurements at 10 Hz with sub-ppb precision. In addition, the AAT can report measurements quickly over a wide range of ammonia concentrations. For your convenience, we offer two versions of the AAT.  If you require the fastest response rate possible (data rate up to 10 Hz), you will want to use our Ammonia Analyzer - Trace (Fast Flow). For applications requiring measurements of NH3 with highest accuracy, you’ll want the Ammonia Analyzer – Trace (Enhanced Performance).  

The analyzer uses LGR’s patented Off-axis ICOS technology, a fourth-generation cavity enhanced absorption technique which employs a high-finesse optical cavity as the measurement cell. LGR’s technology has many proven advantages over conventional first-generation cavity ringdown spectroscopy (CRDS) techniques. In brief, since the laser beam does not have to be resonantly coupled to the measurement cell (i.e. precise beam alignment is not critical), LGR Analyzers are relatively inexpensive, simple to build, and inherently robust thermally and mechanically.  In addition, since LGR’s technology can record reliable absorption spectra over a far wider range of optical depths (absorbance values) compared with CRDS, LGR Analyzers provide measurements over a much wider range of mole fractions (gas concentrations). Finally, due to the ease and simplicity of recording and quantifying the measured spectra using LGR’s Off-Axis ICOS, LGR Analyzers display the entire absorption spectra to the user in real time allowing for immediate system diagnostics and performance validation.