Supervisors info:
ΕΥΑΓΓΕΛΟΣ ΜΠΑΚΕΑΣ, Επίκουρος Καθηγητής Τμήματος Χημείας, ΕΚΠΑ
ΕΜΜΑΝΟΥΗΛ ΔΑΣΕΝΑΚΗΣ, Καθηγητής Τμήματος Χημείας, ΕΚΠΑ
ΑΝΤΩΝΗΣ ΚΑΛΟΚΑΙΡΙΝΟΣ, Καθηγητής Τμήματος Χημείας, ΕΚΠΑ
Summary:
This thesis took place at the Laboratory of Environmental Chemistry of the University of Athens. The goal of this thesis was to study the biogenic volatile organic compounds and the secondary biogenic organic compounds in particulate matter PM10 in the wider area of Athens and more specifically in the area of the University of Athens. To be more accurate cumene, a-pinene, b-pinene, 3-carene and limonene was the compounds which was examined for the category of biogenic volatile organic compounds. For the determination of the secondary biogenic organic compounds in particulate matter PM10 the compounds that was examined are: succinic acid, glutaric acid, adipic acid, pinonic acid, methylerythritol, pimelic acid, pinic acid, phthalic acid, suberic acid, isophthalic acid, palmitic acid and stearic acid. Two series of samplings took place. One pump sampler and one high volume sampler were used for the samplings of biogenic volatile organic compounds and for the particulate matter PM10. The first series of samplings took place during the summer months June-August of the year 2016 and the second series of samplings took place during the winter months November-December of the year 2016. Moreover the samplings are divided in samplings of 24 hours and 3 hours during a full day. A derivatization reagent BSTFA it was used because of the polar groups of the compounds in the particulate matter PM10. The determination of the compounds which have already mentioned above it was done with the use of gas chromatography mass spectrometry.
The validation of the method was realized through the examination of some characteristics such as specificity, linearity, precision, recoveries and limits of detection and quantification. The method represents satisfactory results recoveries and repeatability. The detector’s response was linear, within the range 5 to 100 ng/mL for the biogenic volatile organic compound and 0.5 to 50 ug/mL for the secondary biogenic organic compounds.
The purpose of this thesis was the correlation of biogenic volatile organic compounds with their oxidation products namely the secondary biogenic organic compounds in particulate matter PM10.
Keywords:
BVOCs, secondary organic aerosol, BSTFA, correlation of primary and secondary compounds, gas-chromatography
