Product specifications BASIC DESCRIPTION Real time/online TC/BC/EC/OC and BrC analysis with the Carbonaceous Aerosol Speciation System - CASS. The Magee Scientific CASS is a revolutionary scientific instrument that measures TC/BC/EC/OC and BrC in near-Real-Time. The equipment contains no fragile glassware and requires no special gas supplies. In contrast to existing methods, the CASS offers greater reliability, greater flexibility, and very substantial operational cost savings for aerosol analysis. *European Patent EP19213028.4 and other patents pending MEASUREMENT PRINCIPLE Optical Analysis of BC with continuous collection of aerosol on filter and simultaneous measurement of attenuation of transmitted light at wavelengths 370, 470, 520, 590, 660, 880 and 950 nm. Thermal Analysis of TC with flash-heating of sample collected on a quartz filter to convert all Carbon to CO 2 . The mathematical principle is simple: Total Carbon (TC) = Black (or Elemental) Carbon (BC, EC) + Organic Carbon (OC). Measure TC with the TCA08; Measure BC/EC with the AE33 Aethalometer; Derive OC immediately in near-Real Time by subtraction: OC = TC - EC. The AE33 Aethalometer also identifies ‘Brown Carbon’ (BrC) by multi-wavelength optical analysis, to separate Biomass Smoke from Diesel Emissions. AE33 DUALSPOT TM TECHNOLOGY Simultaneous analysis of light absorption by aerosol deposits collected on 2 spots in parallel at different loading rates*. Mathematical combination of data yields Black Carbon result independent of ''spot loading effects'' and provides additional information about aerosol composition. *United States Patent 8,411,272, United States Patent 9,018,583, other patents pending SOURCE APPORTIONMENT Discrimination of Black Carbon from fossil fuel versus biomass combustion possible with built-in analysis by a two-component model in Aethalometer AE33. SPECIFIED PERFORMANCE OF AE33 Analytical sensitivity of BC - proportional to time-base and sample flow rate settings: ≈ 0.03 μg/m3 @ 1 min, 5 LPM (or 0.015 μg/m3 in HS mode) Detection limit of BC (1 hour)
"Very efficient. Competitive pricing. The reminders, I’m so busy in my job that it’s so great to have a reminder to do something. It really helps me.
I’m very happy".
- Tim Cannon – Research and Development Manager; Pecan Engineering Pty Ltd