Quartz crystal microbalance for real-time air quality measurement
In air quality research and industrial hygiene studies, accurate real-time measurement of particle size distribution is crucial. Traditional methods often require lengthy setup and measurement times, which can be inefficient and impractical in dynamic environments.
Real-time mass-based particle size distribution
The Quartz Crystal Microbalance (QCM) MOUDI™ Impactor 140 from TSI Systems is an advanced instrument that combines quartz crystal microbalance and cascade impaction technologies. This unique integration allows for direct mass-based size distribution measurements in real time, significantly reducing setup and measurement time from hours to minutes. The QCM MOUDI™ features six stages of micro-orifice impaction with sharp collection efficiency curves and calibrated cutpoints at 960, 510, 305, 156, 74, and 45 nm. It includes an integrated humidity conditioning system to ensure accurate mass measurements and eliminate solid particle bounce. The system supports a sample flow rate of 10 L/min and filters out particles larger than 2.5 micrometers at the inlet, making it suitable for a range of applications including air pollution sampling, inhalation toxicology testing, and industrial hygiene studies.
Benefits
- Real-time mass detection for immediate data
- High accuracy with six-stage aerodynamic diameter fractionation
- Nanogram resolution for precise measurements
- Automatic humidity conditioning for reliable aerosol sampling
- Efficient setup and operation with a touch-screen interface