System and method for collecting samples of atmospheric aerosol particles for near-real time analysis

摘要: A system and method for collecting sub-hourly ambient particulate matter samples at flow rates of 170-260 L/min is suitable either on- or off-line near-real-time multielement analysis by graphite furnace atomic absorption spectrometry other techniques which a sample in slurry form advantageous. Condensational growth water vapor was used to grow fine particles steam injection. The grown droplets are concentrated using virtual impactor, then separated from the airstream real impactor. collected liquid hydraulically delivered vials every 30 minutes offline analysis, directly into analysis.