|
Instrument
|
Measures
|
| Aerosol time-of-flight mass spectrometers (4) |
Individual particle size and composition |
| Scanning mobility particle sizing systems (2) |
particle size (20 nm to 0.6 um) |
| Ultrafine aerosol mass spectrometer |
The composition of size selected particles down to 50 nm |
| Aerodynamic particle sizing systems (3) |
Aerodynamic particle size (0.5 um to 10 um) |
| Opticle particle counters (2) |
Opticle particle size (0.2 um to 10 um) |
| Nephelometers |
Light backscattering (visibility) |
| Flow tubes |
Used for measuring particle formation processes and heterogeneous
chemistry on short time scales |
| Smog chamber system |
Used for measuring particle formation, growth, and chemistry of
particles under controlled conditions of relative humidity and UV flux |
| Atmospheric Pressure Chemical Ionization Mass Spectrometer |
Extremely sensitive technique for measuring gas phase species concentrations |
| Meteorological stations (3) |
Temperature, wind speed and direction, relative humidity |
| NOx system |
Gas phase concentrations of NOx |
| Ozone monitor |
Gas phase concentrations of ozone |
| SOx system |
Gas phase concentrations of SOx |
| HPLC system |
Used for separation and detection of complex mixtures |
| GC system |
Used for separation and detection of complex mixtures |
| MOUDI impactors |
Size segregated particle mass concentrations |
| Tapered element oscillating microbalance (TEOM) |
PM2.5 and PM10 mass concentration |
| Nd:YAG laser systems (nanosecond) (6) |
Used for LDI at 266 nm (also 1064, 532, and 355 nm available) |
| CO2 laser system |
Used in 2-step LDI-TOFMS |
| **Femtosecond IR laser (coming in Jan. 2002!!) |
Used for LDI in IR region |
