Applications Note Atmospheric Monitoring
Ultra-Sensitive Measurements of Methane, Carbon Dioxide and Water Vapor for Atmospheric Monitoring. Picarro's CO2/CH4/H2O analyzer is a field-deployable, real-time, ambient gas monitor that measures atmospheric levels of methane and carbon dioxide with ppbv sensitivity and water vapor with ppmv sensitivity. The analyzer maintains high linearity, precision, and accuracy over changing environmental conditions, with minimal calibration. The unique capabilities of the underlying WS-CRDS technology are complemented by a superior analyzer design, including a high-precision wavelength monitor providing immunity to interfering gases, meticulous temperature and pressure control, and robust digital signal processing that transforms raw data into directly useable information. Deployment in several atmospheric monitoring and meteorological facilities, including Penn State University, has shown that the analyzer requires minimal recalibration and no sample conditioning.
Applications Note Ammonia Monitoring
Ultra-Sensitive Ammonia Measurements. Measurement and control of ammonia is critical in a variety of industrial applications including power generation, petrochemical processing, and semiconductor manufacturing. In many cases, ammonia measurement at ppb levels is required to achieve optimal process control or safeguard valuable work-in-process material. Ammonia is difficult to measure at ppb levels because of its "stickiness" - its tendency to adsorb to surfaces - such that varying temperature and ambient moisture levels can produce erroneous measurements. Few instruments exist that can simultaneously meet the sensitivity and speed requirements of the most demanding process control applications. Picarro's trace ammonia analyzer simultaneously provides both the sensitivity and the speed needed for the most demanding ammonia measurement applications and is able to achieve ppb sensitivity in a few minutes and does so directly on the gas stream.