AEROSOL MASS SPECTROMETER
A research grade instrument capable of providing size and chemical mass loading information for non-refractory, sub-micron aerosol particles into a single real-time measurement system.
AMS systems are used worldwide in research laboratories, and deployed in field campaigns at fixed sites, in mobile laboratories, and on ship and aircraft platforms.
With the addition our optional soot particle (SP) module, the AMS can also measure refractory aerosol particles containing absorbing material such as black carbon and certain metals. There are three versions of the Aerodyne AMS instrument: the LTOF-AMS, HTOF-AMS, and the Mini-AMS. These instruments differ in performance, size and weight.
Aerosol Mass Spectrometer Models
AMS Accessories
PM 1 Lens
Particle aerodynamic lens (70 nm – 700 nm transmission range)
PM 2.5 Lens
Particle aerodynamic lens (110 nm – 3500 nm diameter)
Standard Vaporizer
Best suited for smaller particles
Capture Vaporizer
Recommended for 2.5 lens; designed to trap the bounce as particle size increases
ePTOF Sizing Module
Efficient Particle Time of Flight chopper to provide improved particle size measurement and resolution
Thermal Denuder
Programmable thermal denuder with automated switching to ambient
Sample Line Flow Controller
Light-weight, low power flow-controlled sampling pump; flows up to ~8LPM
AutoValve
Servo actuated ball valves; digitally controllable; 2 or 3-way configurations
PAM (Potential Aerosol Mass Oxidation Flow Reactor)
Oxidative flow reactor for aerosol chemistry studies
Aerosol Dryer System
Simple solution to dry aerosol sample; data logging of RH/T and P
Sampling System
Combines a pump and a mass flow meter with active flow regulation to deliver the sample to the AMS inlet
Soot Particle Module
Enables size resolved detection of particles containing black carbon and other certain metals (HTOF and LTOF models)
High Resolution Time-of-Flight Aerosol Mass Spectrometer
Measure real-time, non-refractory, size-resolved particulate chemical composition and mass.
- Aerodynamic particle lens for efficient gas-particle separation
- Linear universal detection of sulfate, nitrate, ammonium, chloride and organic aerosol species through two-step thermal vaporization (~600 C) and electron impact ionization process
- Single particle detection mode via event trigger
- Particle aerodynamic diameter determined from particle time-of-flight (velocity) measurements using a particle beam chopping technique
- Separation and quantification of organic aerosols species, including primary and secondary organic aerosol
Long Time-of-Flight Aerosol Mass Spectrometer
Measure real-time, non-refractory, size-resolved particulate chemical composition and mass.
- Aerodynamic particle lens for efficient gas-particle separation
- Resolution approaching 7000 m/Δm
- Linear universal detection of sulfate, nitrate, ammonium, chloride and organic aerosol species through two-step thermal vaporization (~600 C) and electron impact ionization process
- Single particle detection mode via event trigger
- Particle aerodynamic diameter determined from particle time-of-flight (velocity) measurements using a particle beam chopping technique
- Compatible with 1064 nm laser vaporization module
- Improved separation and quantification of organic aerosols species, including primary and secondary organic aerosol, compared to HTOF-AMS
Mini-Aerosol Mass Spectrometer System
Measure real-time, non-refractory, size-resolved particulate chemical composition and mass.
- Compact vacuum system for applications where space is limited (i.e., mobile platforms)
- Similar size compared to TOF-ACSM but provides size resolution measurements
- Aerodynamic particle lens for efficient gas-particle separation
- Linear universal detection through two-step thermal vaporization (~600 C) and electron impact ionization process
- Single particle detection mode via event trigger
- Mass spectrometric analysis (0-400 m/z)
- Particle aerodynamic diameter determined from particle time-of-flight (velocity) measurements using a particle beam chopping technique
- Remote control ready
| Mass Spectrometer System | Detection Limit (µg/m3)* |
Mass Resolving Power (m/∆m) |
Mass Range (m/z) | Length x Depth x Height | Weight |
|---|---|---|---|---|---|
|
0.03 – 0.003 |
5000 – 2500 |
1-1200 |
41” x 24” x 50” 104 cm x 61 cm x 127 cm |
320 lbs 145 kg |
|
|
0.04 |
7000 |
1-1000 |
55” x 24” x 27” 140 cm x 61 cm x 69 cm |
275 lbs 125 kg |
|
|
0.025 |
600 |
1-400 |
25.6” x 20.1”x 23.6” 65 cm x 51 cm x 60 cm |
165 lbs 75 kg |
* Detection limits are for 1-minute integration, 3σ. Detection limits depend on chemical species. Typical values for nitrate are listed (organic DL is ~10x higher, sulfate DL is ~2x higher and ammonium DL is ~20x higher).