Κατεύθυνση Αναλυτική Χημεία-Διασφάλιση ποιότητας
Library of the School of Science

2024-07-03

2024

Trika Maria

Ευάγγελος Μπακέας, Καθηγητής, Τμήμα Χημείας, ΕΚΠΑ (Επιβλέπων)
Σωτήριος Καραβόλτσος, Επίκουρος Καθηγητής, Τμήμα Χημείας, ΕΚΠΑ
Αθηνά Μάρκου, Επίκουρη Καθηγήτρια, Τμήμα Χημείας, ΕΚΠΑ

Ανάπτυξη και επικύρωση μεθόδου προσδιορισμού οξέων και αλκοολών σε αιωρούμενα σωματίδια της ατμόσφαιρας

Greek

Development and validation of a method for the determination of acids and of alcohols in airborne particles

Alcohols are compounds that contain a hydroxyl group (OH) and their names end with
"-ol". Saccharides or carbohydrates are abundant in nature and structurally they are
polyhydroxylated aldehydes or ketones. Saccharides are a major class of water-soluble
organic compounds in primary organic aerosols, constituting 13–26% of them. In
addition, certain acids, which are called hydroxy acids, also contain a hydroxyl group. In
this study, development and validation of a method for the determination of acids and
alcohols in PM1 was carried out. PM1 samples were collected in the residential area of
Nicosia and analyzed by UPLC-Q-ToF-MS. Three alcohols and two hydroxy acids were
identified and quantified using commercially available standard compounds.
Different seasonal trends were observed between alcohols and citric acid. Alcohols
record higher concentrations in winter, while citric acid is not detected at all in summer.
As for malic acid, its levels remain almost constant in both seasons. Also, the results
were correlated with levels of conventional air pollutants, winds, humidity and
temperature. Finally, a comparison was made with the method for determining organic
acids developed the previous academic year in the Atmospheric Chemistry laboratory of
the Analytical Chemistry sector of the Chemistry Department of the National and
Kapodistrian University of Athens

Science

atmospheric pollution, particulate matter, alcohols, liquid chromatography, mass spectrometry

No

0

Yes

69

94

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https://pergamos.lib.uoa.gr/uoa/dl/object/3402561