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Identifier |
000456540 |
Title |
Ανάπτυξη μεθόδων προσδιορισμού ιχνοστοιχείων σε δείγματα θαλάσσιου νερού με εκχύλιση στερεάς φάσης σε συνδυασμό με φασματομετρία μάζας |
Alternative Title |
Development of methods for the determination of trace elements in seawater samples by solid phase extraction combined with inductively coupled plasma mass spectrometry (ICP-MS) |
Author
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Κολημένου Μαρία-Ελένη Μ.
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Thesis advisor
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Περγαντής, Σπυρίδων
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Reviewer
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Τσαπάκης, Μανώλης
Τρικαλίτης, Παντελεήμων
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Abstract |
Heavy metal pollution of the aquatic environment is a global concern, due to the
toxicity of the metals and their serious effects on marine ecosystems and their
organisms. For this purpose, in the present study, a technique was developed for the
determination of trace metal elements in marine water samples using the solid phase
extraction technique combined with inductively coupled plasma mass spectrometry
(ICP-MS). The extraction technique was performed via offline pre-concentration of
the samples with the aid of the seaFAST SP3 pre-treatment system. Initially, the
method was validated using a standard reference material in order to achieve
maximum sensitivity and low detection limits (μg L-1 or ng L-1). It was then applied to
the analysis of seawater samples from the area between the Artemision Strait and the
exit of the Pagasitikos Gulf. This was followed by a comparison of the results based
on the European legislative water quality limits, as well as previous corresponding
bibliographic reports for the area in question. At the same time, the appearance of
inorganic forms of As in fish samples of the laboratory's current program, led to the
development of a new experimental setup for the formation of volatile hydrides for
the determination of the specific element in the water samples of the present study.
The results obtained were compared along the way with data from a second area of
the Greek maritime space, namely the Venetian port of Heraklion. Finally, with the
aim of further advancing our research of the marine environment, an attempt was
made to quantify rare earth elementsthrough the offline pre-concentration mode,
providing quite promising data, which paves the way to investigate the specific
valuable elements in Greece.
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Language |
Greek, English |
Issue date |
2023-07-27 |
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/6/7/0/metadata-dlib-1687436789-250118-13209.tkl
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Views |
432 |