1. |
2. The new instrument using a TC–BC (total carbon–black carbon) method for the online measurement of carbonaceous aerosolsMartin Rigler, Luka Drinovec, Gašper Lavrič, Anastasia Vlachou, André S. H. Prévôt, Jean-Luc Jaffrezo, Iasonas Stavroulas, Jean Sciare, Judita Burger, Irena Krajnc, Janja Turšič, Anthony D. A. Hansen, Griša Močnik, 2020, izvirni znanstveni članek Opis: We present a newly developed total carbon analyzer (TCA08) and a method for online speciation of carbonaceous aerosol with a high time resolution. The total carbon content is determined by flash heating of a sample collected on a quartz-fiber filter with a time base between 20 min and 24 h. The limit of detection is approximately 0.3 µg C, which corresponds to a concentration of 0.3 µg C m−3 at a sample flow rate of 16.7 L min−1 and a 1 h sampling time base. The concentration of particulate equivalent organic carbon (OC) is determined by subtracting black carbon concentration, concurrently measured optically by an Aethalometer®, from the total carbon concentration measured by the TCA08. The combination of the TCA08 and Aethalometer (AE33) is an easy-to-deploy and low-maintenance continuous measurement technique for the high-time-resolution determination of equivalent organic and elemental carbon (EC) in different particulate matter size fractions, which avoids pyrolytic correction and the need for high-purity compressed gases. The performance of this online method relative to the standardized off-line thermo-optical OC–EC method and respective instruments was evaluated during a winter field campaign at an urban background location in Ljubljana, Slovenia. The organic-matter-to-organic-carbon ratio obtained from the comparison with an aerosol chemical speciation monitor (ACSM) was OM/OC=1.8, in the expected range.
Najdeno v: osebi
Ključne besede: total carbon, aeroosl, black carbon, carbonaceous matter
Objavljeno: 17.08.2020; Ogledov: 1935; Prenosov: 62
 Polno besedilo (226,45 KB) |
3. Camp Fire 2018: Highly time-resolved study of eOC, eBC and BrC aerosols by the TC-BC (total carbon–black carbon) methodMartin Rigler, Jonathan P. Bower, Charity Garland, Jack Connor, Irena Ježek, Balint Alfoldy, Asta Gregorič, Gašper Lavrič, Matic Ivančič, 2021, objavljeni povzetek znanstvenega prispevka na konferenci Najdeno v: osebi
Ključne besede: total carbon, black carbon, brown carbon
Objavljeno: 17.11.2021; Ogledov: 859; Prenosov: 40
Polno besedilo (4,62 MB) |
4. Two-year-long high-time-resolution apportionment of primary and secondary carbonaceous aerosols in the Los Angeles Basin using an advanced total carbon–black carbon (TC-BC([lambda])) methodSina Hasheminassab, Irena Ježek, Bálint Alföldy, Gašper Lavrič Palancsai, Asta Gregorič, Matic Ivančič, Payam Pakbin, Faraz Ahangar, Mohammad Sowlat, Steven Boddeker, Martin Rigler, 2022, izvirni znanstveni članek Najdeno v: osebi
Ključne besede: carbonaceous aerosols, black carbon, brown carbon, Carbonaceous Aerosol Speciation System
Objavljeno: 04.08.2022; Ogledov: 378; Prenosov: 3
Polno besedilo (2,70 MB)
Gradivo ima več datotek! Več...
|
