대기 중 미립자 물질
- Real-time, simultaneous multi-element detection
- Stationery and mobile deployments
- 정확한 식별을 위한 높은 질량 분해능
- Low limits of detection in seconds
배경
Airborne Particulate Matter (APM)
The continued concern regarding environmental pollution has long since triggered the development of analytical techniques for monitoring atmospheric gases to assess the impact of industrial and anthropogenic activities. The elemental composition of airborne particles, such as metals that have an adverse impact on human health and the environment, can be monitored to identify an emission source and its impact. The characterization and quantification of metals in aerosols can be performed using our microwave-induced plasma time-of-flight mass spectrometer (TOFMS), the mipTOF.
The mipTOF is a field deployable TOFMS featuring a high-power microwave-induced plasma for real-time quantification of trace elements and metals in air. It can provide information regarding the multi-elemental and isotopic trace concentrations of airborne pollutants, such as particle elemental composition, size and concentration. Its ability to sensitively monitor aerosols and particulates in the field, combined with comprehensive real-time mass detection of nearly all particle elements, enables elemental correlations and source apportionment across both time and space.
솔루션
Field-Deployable, Real-Time Analysis Using the mipTOF
- Employ a high-power plasma source using nitrogen or air
- Enable field deployment through on-site generated gases
- Support real-time continuous particulate analysis via direct air sampling
- Facilitate localization of aerosol events in both time and space
- Provide comprehensive mass detection of nearly all particle elements simultaneously
- Detect metals in single particles with detection limits from atto- to femtograms
- Outperform state-of-the-art XRF-based instruments with a 10-second integration time versus 30-minute detection
Data recorded from a “silver vulcano” firework at 10 m distance. The lighting of the vulcano is indicated. Measured elements include Na, Mg, K, Ti, Fe, Cu, Zn, Rb, Sr, Mo, Ba.
