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CHARON

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Real-Time Aerosol Inlet for IONICON PTR-TOFMS

The new CHemical Analysis of aeRosol ON-line (CHARON) particle inlet coupled to IONICON PTR-TOFMS instruments quantitatively detects organic sub-µm particulate matter as well as particulate ammonium and nitrate at single digit ng/m³ mass concentration levels in real-time.

Overview

  • One Instrument for Particles and Gases: sequentially characterize almost the full range of organic compounds in the gas- and particle-phase with one single instrument.
  • VOC, IVOC, SVOC and LVOC: on-line and real-time detection of volatile- to low volatile organic compounds on a molecular composition level.
  • Broad Linearity Range: detect virtually all particulate organic compounds in the atmosphere with individual concentrations of less than 100 pg m-3. The upper limit of detection is in the range of 1 mg m-3.
  • High Temporal Resolution: our novel Extended Volatility Range (EVR) setup allows for detecting of even the stickiest compounds in world leading PTR-MS response times.
  • Selective Reagent Ionization (SRI-MS): use H3O+ mode for most quantitative results. Switch to NH4+ adduct mode for almost fragmentation free ionization within seconds.

A new generation of quantitative operation

  • CHARON provides bulk elemental composition ratios (e.g. O:C, H:C, OSC) as well as bulk-average molecular formulas.
  • Excellent agreement with existing measurement techniques (e.g. TOF-AMS, LC-MS).
  • Follow individual particulate tracer compounds within single seconds response times.
  • Fully automated operation and advanced data analysis with IDA.
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