Dekati ELPI+ Jonna Kannosto, PhD Technical Marketing Specialist
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1 Dekati ELPI+ Jonna Kannosto, PhD Technical Marketing Specialist
2 ELPI+ : Main features and benefits 6 nm - 10 µm 14 size fractions Or 200/500 channels with High Resolution ELPI+ Wide dynamic range from outdoor air to power plant stack concentrations Number size distribution and concentration Real-time, 10 Hz Particles are collected enables subsequent chemical analysis on the collected samples charge measurements Red cell Charge distribution of aerosol in real time charge/number (Q/N) result Jonna Kannosto
3 ELPI+ : Main features and benefits 6 nm - 10 µm 14 size fractions Or 200/500 channels with High Resolution ELPI+ Wide dynamic range from outdoor air to power plant stack concentrations Number size distribution and concentration Real-time, 10 Hz Particles are collected enables subsequent chemical analysis on the collected samples charge measurements Charge distribution of aerosol in real time charge/number (Q/N) result Jonna Kannosto
4 ELPI+ : Main features and benefits 6 nm - 10 µm 14 size fractions Or 200/500 channels with High Resolution ELPI+ Wide dynamic range from outdoor air to power plant stack concentrations Number size distribution and concentration Real-time, 10 Hz Particles are collected enables subsequent chemical analysis on the collected samples charge measurements Charge distribution of aerosol in real time charge/number (Q/N) result Jonna Kannosto
5 ELPI+ : Main features and benefits 6 nm - 10 µm 14 size fractions Or 200/500 channels with High Resolution ELPI+ Wide dynamic range from outdoor air to power plant stack concentrations Number size distribution and concentration Real-time, 10 Hz Particles are collected enables subsequent chemical analysis on the collected samples charge measurements Charge distribution of aerosol in real time charge/number (Q/N) result Jonna Kannosto
6 ELPI+ : Main features and benefits 6 nm - 10 µm 14 size fractions Or 200/500 channels with High Resolution ELPI+ Wide dynamic range from outdoor air to power plant stack concentrations Number size distribution and concentration Real-time, 10 Hz Particles are collected enables subsequent chemical analysis on the collected samples charge measurements Charge distribution of aerosol in real time charge/number (Q/N) result Jonna Kannosto
7 ELPI+ Operating Principle 1 fa = 0, A
8 ELPI+ calibration
9 ELPI+ calibration and calculation
10 ELPI+ Calculation
11 ELPI+ Calculation N 3 E ch I3 ( D p ) I3 PneQ 100 ELPI+ Charger Efficiency 10 PneQ, fa/cm Dp, μm I 3 Jonna Kannosto
12 ELPI+ measurements Real time Number concentration Mass concentration Lung deposited area Active surface area Ion sink Condensation sink Describes activity of particle Jonna Kannosto
13 Collection: Mass and Chemical analysis Mass and chemical analysis of size classified particles D. Temesi et al: Size resolved chemical mass balance of aerosol particles over rural Hungary. Atmospheric Environment 35 (2001)
14 Collection: SEM and TEM Karsten Fuglsang, Jacob Markussen, Karina Brotoft, Thue G. Frederiksen FORCE Technology ETH Conference on Combustion Generated Nanoparticles, Zürich, 4 Aug. 2010
15 ELPI+ for net charge measurements By turning ELPI+ TM charger off Readings in fa (10-15 A) 1A = 1 Coulomb /s Natural Charge distribution of aerosol in real time Net charge of particles Charge/number (Q/N) result charger can be switched on and off (~5-10 seconds) or parallel measurements can be conducted Automatic Q/N and Q/M calculation in ELPI+VI Automatic charger ON and OFF measurement
16 Gravimetric measurements ELPI+ TM Impactor can be used as a gravimetric impactor Aluminium/polycarbonate foils Charger off Weigh the substrates
17 ELPI+ applications Outdoor air quality measurements Indoor air Automotive testing and research Blow-by gas Brake wear debris Combustion research Pharmaceutical studies Welding fumes Etc.. Wide variety of applications Application notes/papers available Publications list at
18 ELPI+ : Main features and benefits 6 nm - 10 µm 14 size fractions Or 200/500 channels with High Resolution ELPI+ Wide dynamic range from indoor air to power plant stack concentrations Number size distribution and concentration Real-time, 10 Hz Particles are collected enables subsequent chemical analysis on the collected samples charge measurements Charge distribution of aerosol in real time charge/number (Q/N) result Jonna Kannosto
19 ELPI+ How particles are growing or changing? How harmful particles can be? What kind of particles? Are particles charged? Jonna Kannosto
20 ELPI+ One instrument, many answers Jonna Kannosto
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