Potential Aerosol Mass Oxidation Flow Reactor (PAM-OFR)
A highly oxidizing environment that simulates oxidation processes on timescales of days in the atmosphere in minutes in real time.
A highly oxidizing environment that simulates oxidation processes on timescales of days in the atmosphere in minutes in real time. Available in single and dual versions.
The Potential Aerosol Mass (PAM) is an Oxidation Flow Reactor (OFR) that provides a highly oxidizing environment that simulates atmospheric oxidation processes on timescales ranging from a day to several days in a few minutes in the laboratory / field. In addition to being used as a source of secondary organic aerosol (SOA) particles, the PAM reactor is also used to simulate atmospheric processing of soot and other model primary organic aerosols.
Potential Aerosol Mass Oxidation Flow Reactor
PAM Accessories
Carrier Gas Mass Flow Controllers
Alicat MC Series Mass Flow Controllers for regulation of carrier gas flows in laboratory SOA generation measurements
Sampling System
The sample line flow controller is a stand-alone component that combines a pump and a mass flow meter with active flow regulation to pull makeup flow through the PAM chamber
Dedicated Laptop Control PC
Delivered with preinstalled PAM control software
Syringe Pump
For continuous injection of liquid organic compounds into a carrier gas. Supplied with syringe, delivery line tubing, fittings, mounting bracket
UVA - UVB Lamps
(4) narrow-band UVB lamps (312 nm)
(4) narrow-band UVA lamps (369 nm)
Ozone-Denuder
Annular denuder filled with Carulite 200 catalyst, maximum 5 lpm flow rate capacity
AV42-PAM Autovalve
2nd Pam Style ARI Autovalve
- Field deployable
- Oxidants: O3, OH, NO3, Cl, Br
- Wide range of oxidant exposure times attainable with dimmable UVC, UVB or UVA at high measurement throughput/resolution
- Oxidant concentrations are 100 to 10,000 times larger than in the daytime troposphere, simulating days of atmospheric oxidation in minutes
PAM Dual OFR Overview
- Extends applications of the PAM OFR by providing the ability to simulate multiple oxidation processes in parallel
- Enables automated fast switching of instruments between OFRs
- Configurable to input different precursors into OFRs using the same oxidant, or the same precursor into OFRs using different oxidants
