Dionex Corporation Home

Air Analysis

As a leader in air sampling, URG has a family of products for air sampling including denuders and particle analyzers. As the ion chromatography leader and developers of Reagent-Free™ IC systems, Dionex provides the ultimate in air analysis capabilities. URG and Dionex have teamed up to provide a complete solution for air monitoring. The AIM system is now controlled by a single software package: the Thermo Scientific* Dionex* Chromeleon* Chromatography Data System (CDS) 7.2, which includes many features that simplify the control of the AIM systems and expedite analysis of the resulting, including ePanels, eWorkflows, and Report Templates.The result is a turnkey system specific to your needs.

Measurement Capabilities

The 9000 Series Ambient Ion Monitors are available in four configurations for the online determination of air particulate matter (PM) below 2.5u’s.

  • The URG-9000A Ambient Ion Monitor (AIM) provides time-resolved direct measurements of anion particulate nitrate, sulfate, nitrite, phosphate, and chloride found in PM-2.5. nitrite and sulfate aerosols are produced as a result of the interaction of ammonia (NH3), NOx, SO2, and other gaseous constituents.
  • The URG-9000B Ambient Ion Monitor (AIM) has an additional Ion Detector to allow for time-resolved direct measurements of cation particulate ammonium, sodium, calcium, potassium, and magnesium in addition to the anion particulate.
  • The URG-9000C Ambient Ion Monitor (AIM) provides time-resolved direct measurements of anion gases hydrogen chloride, nitric acid, nitrous acid, and sulfur dioxide in addition to the anion particulate.
  • The URG-9000D Ambient Ion Monitor (AIM) provides time-resolved measurements of ammonia in addition to the anion gases, anion particulate, and cation particulate.

Air Analysis

The analysis method for the AIM Monitor is Reagent-Free Ion Chromatography. An AIM Monitor requires as little as 4 L deionized water for 10 sampling days. The detection limit is 0.05 µg per cubic meter or lower depending on which ion is being measured. Ion chromatography separates the nitrate and sulfate ions so that the measurements are not affected by other nitrogen-containing compounds. Losses due to volatilization are eliminated because the particles are collected in a solution and then analyzed by ion chromatography. All the AIM Monitors include chemical or electrolytic suppression ion chromatographs (IC). To learn more about the capabilities, click on the links below.

Visit URG to learn more about the URG-9000 product family. www.urgcorp.com

Regulatory Assistance

EPA Emission Monitoring Center information on test methods for measuring pollutants (http://www.epa.gov/ttn/emc/index.html)