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Identifier |
000419378 |
Title |
Μετρήσεις αμινών στην ατμόσφαιρα |
Alternative Title |
Amines measurements in the atmosphere |
Author
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Παναγιωτοπούλου, Γεωργία Κ.
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Thesis advisor
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Κανακίδου, Μαρία
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Reviewer
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Περγαντής, Σπυρίδων
Μιχαλόπουλος, Νικόλαος
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Abstract |
Amines are emitted in the atmosphere by a wide range of natural and anthropogenic sources. For instance, aliphatic and aromatic amines produced by animal husbandry and industrial operations respectively. They play a key role in new particle formation (NPF) because they can form stable molecular clusters involving sulfuric acid and water.
In the present work, gas – phase amines were trapped as salts in glass wool filters impregnated with phosphoric acid. The samples were analyzed by Liquid Chromatography - Mass Spectrometry (LC-MS) for the detection and quantification of low molecular weight alkylamines. The sampling took place at environmental research station of University of Crete at Finokalia (35˚20´N, 25˚40´E, 250m).
The alkylamines of interest are Ethylamine (EA), Dimethylamine (DMA), Trimethylamine (TMA), Propylamine (PA), Diethylamine (DEA) and Triethylamine (TEA). Primary experiments indicate the presence of Diethylamine (DEA) and Triethylamine (TEA) as the most abundant.
Alkylamines were measured in a boreal forest air in Finland (Hyytiälä 61˚ 510 Β, 24˚ 170 Α, 180 m) using an online ion chromatograph (instrument for measuring AeRosols and Gases in Ambient Air – MARGA) connected to mass spectrometer (MS). The MARGA – MS method was able to detect and separate seven different amines both in gas and particle phases such as Methylamine (MA), Dimethylamine (DMA), Trimethylamine (TMA), Ethylamine (EA), Diethylamine (DEA), and Propylamine (PA). This study was held in an internship with Erasmus+ student exchange programme.
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Language |
Greek |
Subject |
Amines |
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Αμίνες |
Issue date |
2018-11-30 |
Collection
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School/Department--School of Sciences and Engineering--Department of Chemistry--Post-graduate theses
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Type of Work--Post-graduate theses
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Permanent Link |
https://elocus.lib.uoc.gr//dlib/7/6/9/metadata-dlib-1542709944-104485-30819.tkl
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Views |
377 |