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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 Κολημένου Μαρία-Ελένη Μ.
Thesis advisor Περγαντής, Σπυρίδων
Reviewer Τσαπάκης, Μανώλης
Τρικαλίτης, Παντελεήμων
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.
Language Greek, English
Issue date 2023-07-27
Collection   School/Department--School of Sciences and Engineering--Department of Chemistry--Post-graduate theses
  Type of Work--Post-graduate theses
Permanent Link https://elocus.lib.uoc.gr//dlib/6/7/0/metadata-dlib-1687436789-250118-13209.tkl Bookmark and Share
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