Aerosol Mass Spectrometer
The Aerodyne aerosol mass spectrometer (AMS) is the only currently available instrument capable of providing quantitative size and chemical mass loading information in real-time for non-refractory sub-micron aerosol particles. The AMS couples size-resolved particle sampling and mass spectrometric techniques into a single real-time measurement system. The Aerodyne AMS has been deployed world-wide at fixed sites, and on mobile laboratory, ship and aircraft platforms. Over 100 instruments are in use in industrial, academic and government laboratories.
Features & Benefits
- Mass spectrometric detection combined with particle time-of-flight provides information on particle aerodynamic diameter and aerosol composition in a single measurement.
- Quantitative chemical analysis by thermal vaporization and electron impact ionization mass spectrometry.
- Particle vaporization temperature adjustable from 200 C to 900 C. Laser-induced incandescence vaporization of black carbon under development.
- Real-time, quantitative size resolved aerosol mass measurement for non-refractory fine particulate matter (40 nm to ~1 µm). New inlets to transmit smaller and larger particle size ranges under development.
- Direct sampling of ambient aerosols; no filters or off-line chemical analysis necessary.
- Fast measurement (1 – 10 sec) of particle size distributions and non-refractory chemical composition.
- Maximum data collection rate of 100 Hz.
Applications
- Measurement of ambient atmospheric aerosol mass loadings and size distributions for environmental monitoring.
- Emissions characterization of combustion sources. Direct determination of OC emissions indices with simultaneous measurement of plume CO2.
- Eddy correlation flux measurements of aerosol sulfate, nitrate, ammonium, and organic species dry deposition fluxes.
- High time-resolution mapping of fine aerosol properties from affordable mobile (van, small aircraft) platforms.
- Diagnostic for laboratory aerosol sources, flow reactors or aerosol chambers for aerosol physics and chemistry experiments.
- Analysis of chemical composition as a function of particle size for aerosol delivery systems such as metered dose inhalers. High time-resolution allows measurements on a puff-by-puff basis, eliminating need for time-consuming impactor analyses.
- Single particle chemical analysis with light scattering module and time-of-flight mass spectrometer.
Literature
Brochure 250Kb