▷Specification

◼ Parameters: Secondary Organic Aerosols, Gas

◼ Mass range: 0 – 1000 Th

◼ Sensitivity: Acetic acid (gas): 80 cps/ppmv

◼ Citric acid (gas): 120 cps/ppmv

◼ Detection limit: Gas: < 10 ppt for organic acids

Aerosol: ~ 1 ng-m-3

◼ Linearity Range: over 3 orders of magnitude in concentration

◼ Inlet system heating (300℃)

◼ Sample Flow Rate: IMR : 2 lpm

    FIGAERO: 2 lpm gas, 5 - 15 lpm aerosol

    Atm Pressure Drift Tube: 10 lpm

    EESI: 1 lpm

▷Features

◼ FIGAERO inlet enables Semi-continuous detection of particle and gas compounds.

◼ High Sensitivity Analysis with 2 quadrupoles (SSQ, BSQ)

◼ Can measure the chemical composition of Aerosol (< 1 Hz)

◼ Compatible with Po-210 or X-ray ionizer

◼ Acetic anhydride is converted by Po-210 to alpha particles.

◼ Sampling cycles between two modes

1. Measure gas-phase of aerosol collection

2. Thermal desorption and mass spectral analysis of collected aerosol

◼ Automated switching between blank sample via thermal desorption ramp

◼ Selective detection based on the employed reagent ion chemistry - Acetate, Iodide, Nitrate, and H3O(H2O)n.

◼ Laboratory, field measurement, transportation convenience.

▷Applications

Atmospheric Environment Monitoring, Secondary Organic Aerosols