URG announces the Annular Denuder System.
This system collects both acidic and basic gases with little or no interference from sampling artifacts and concentrates samples for characterization by analytic methods.
A variation on the ADS includes the Versatile Air Pollutant Sampler, which allows the simultaneous measurement of a variety of air quality parameters. Other variations include the Dual Channel Sequential Fine Particle Sampler and the Weekly Air Pollutant Sampler, which collect aerosols, semivolatiles, and mass in a preset time sequence.
URG, 116 S. Merritt Mill Rd., Chapel Hill, NC 27516. Tel: 919-942-2753, Fax: 919-942-3522.