E-Locus - Institutional Repository of the University of Crete

Home Search

Results - Details

Search command : Author="Στεφάνου" And Author="Ευρυπίδης"

Current Record: 1 of 5

[Add to Basket]

Identifier

000416568

Title

Προσδιορισμός χλωρικών, υπερχλωρικών και βρώμικων ανιόντων με χρήση υγρής χρωματογραφίας-διαδοχικής φασματομετρίας μάζας για την ανάλυση δειγμάτων νερού

Alternative Title

Determination of chlorate, perchlorate and bromate anions by liquid chromatography-tandem mass spectometry for water sample analysis

Author

Κατσάκου, Άλκηστη Γ.

Thesis advisor

Περγαντής, Σπύρος

Reviewer

Στεφάνου, Ευρυπίδης
Σπύρος, Απόστολος

Abstract

According to the World Health Organization (WHO) agency “every human, despite their financial situation and social status, possesses the right to have access to sufficient quantity of safe drinking water”. Undoubtedly, the human need for drinking water has led to the creation of legislations which ensure that every human being on earth can consume sufficient quantities of safe drinking water. In most societies, they use bottled drinking water in their everyday needs. However, there is a risk of the water being contaminated by chemical substances or pathogenic micro-organisms that may result either from equipment disinfecting byproducts or from the environment, during storage. Bottled waters are affected throughout their lifetime, from bottling, storage, opening and maintenance and also factors such as temperature and residual ozone quantity. From the above, he purpose of this thesis is the application of an optimal analytical method by which it is possible to study the presence of three ions, disinfection byproducts, in samples of bottled water that are commercially available to consumers. The objective is not to analyze specific water brands, but to obtain a general picture of the quality of those that are commercially available. The method used was Reversed Phase Liquid Chromatography - Tandem Mass Spectrometry (HPLC-MS/MS). These oxyhalide ions are BrO₃3-, ClO₃- and ClO₄-, and were successfully detected at concentrations of μg/l in several samples. Specifically, the bromide ion concentrations were from 0 to 8.42 μg/l, the chlorate ion concentrations were from 0 to7.54 μg/l and the perchlorate ion concentrations were from 0 to 2.91 μg/l. In this study 18 brands of commercially available bottled water were analyzed. Subsequently, the analytical results were verified by ion chromatography and HPLC coupled to inductively coupled plasma mass spectrometry.

Language

Greek

Subject

Bromate

Chlorate

Disifenction by products

High performance liquid chromatography

Mass spectrometry

Perchlorate

Βρώμικα

Παραπροϊόντα απολύμανσης

Υγρή χρωματογραφία υψηλής απόδοσης