Emissions Measurement & Analysis >> Aerodyne Research Inc.

Time-of-flight Aerosol Chemical Speciation Monitor (ToF ACSM)

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    Time-of-flight Aerosol Chemical Speciation Monitor

    An Aerosol Chemical Speciation Monitor (ACSM) is used in the automotive industry to measure the chemical composition of sub-micron aerosol particles from vehicle emissions in real-time. By providing quantitative mass loadings of organic aerosols, sulfates, nitrates, and ammonium, it helps to understand the sources, formation, and environmental impact of vehicle-related air pollution. This enables the development of more effective emission control strategies and the assessment of air quality impacts, especially in urban and highway environments.

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      Detailed Specs

      Measure real-time, non-refractory aerosol particle mass and chemical composition.

      • Aerodynamic particle lens for efficient gas-particle separation
      • Mass spectrometric analysis (0-200 amu)
      • Automated zeroing (filter)
      • Minimal maintenance; remote control ready
      • Direct linear detection of sulfate, nitrate, ammonium, chloride and organic aerosol species through two-step thermal vaporization (~600 C) and electron impact ionization process
      • Improved separation and quantification of organic aerosol species, including primary and secondary organic aerosol, compared to the Q-ACSM

      Resolving Power M/ΔM* – Unit Mass Resolution
      Data Rate (min) – 10
      Particle Size Range Standard lens / PM 2.5 (nm) – 70-700 | 110-3500
      Length x Depth x Height – 65 cm x 51 cm x 60 cm
      Weight – 75 kg

      Time-of-flight Aerosol Chemical Speciation Monitor