Naslov
Diurnal variation of VOC at Mali Lošinj

Autori
Šorgo, Glenda ; Kovač-Andrić, Elvira ; Kezele, Nenad ; Pompe, Matevž

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of Abstracts: Second ACCENT Symposium - Atmospheric composition Change, Causes and Consequences - Local to Global / - , 2007, 87-87

Skup
Second ACCENT Symposium : Atmospheric composition Change, Causes and Consequences - Local to Global

Mjesto i datum
Urbino, Italija, 23.07.2007. - 27.07.2007

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
VOCs

Sažetak
Anthropogenic and biogenic volatile organic compounds (VOCs) play an important role in various photochemical processes in the troposphere. In order to evaluate their impact on ozone formation a detailed knowledge about their abundance in the atmosphere is required. There are several analytical methods available for the determination of VOC in air. Most procedures use separation by gas chromatography with different detectors (FID, ECD, MSD). Sampling can be performed either collecting whole sample (e.g. canister, bags) or by preconcentration on absorption tubes or cold traps. Absorptive sampling followed by thermal desorption and gas chromatographic detection was used for the measurements of various VOCs in the air at meteorological station on Mali Lošinj. The absorption tubes were filled with several adsorption materials (i.e.Tenax, Carbotrap, Carbosieve) to collect VOC from C2 to C10. The samples were cryo-refocused after thermal desorption and injected on gas-chromatographic capillary column. Al2O3/KCl PLOT column was used for the separation of high volatile VOCs (C2 to C6) applying a FID detector. The described procedure was used for the evaluation of diurnal cycles of high volatile organic compounds at Mali Lošinj.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA