Application of chemometric assisted dispersive liquid-liquid microextraction to the determination of personal care products in natural waters
Φόρτωση...
Ημερομηνία
Συγγραφείς
Panagiotou, A. N.
Sakkas, V. A.
Albanis, T. A.
Τίτλος Εφημερίδας
Περιοδικό ISSN
Τίτλος τόμου
Εκδότης
Elsevier
Περίληψη
Τύπος
Είδος δημοσίευσης σε συνέδριο
Είδος περιοδικού
peer reviewed
Είδος εκπαιδευτικού υλικού
Όνομα συνεδρίου
Όνομα περιοδικού
Analytica Chimica Acta
Όνομα βιβλίου
Σειρά βιβλίου
Έκδοση βιβλίου
Συμπληρωματικός/δευτερεύων τίτλος
Περιγραφή
A rapid and simple method for the determination of two phthalates and five polycyclic musks in water samples using dispersive liquid-liquid microextraction (DLLME) mated to chemometrics and coupled to GC-MS was developed. Volume of extraction (CCl(4)) and disperser solvent (MeOH), pH, ionic strength, extraction time, centrifugation time as well as centrifugation speed were optimized in a 2(7-4) Plackett-Burman design. The obtained significant factors were optimized by using a central composite design (CCD) and the quadratic model between the dependent and the independent variables was built. The optimum experimental conditions of the proposed method were: 250 mu L, carbon tetrachloride, 0.62 ml, methanol, 7.5 min centrifugation time, natural pH containing 0% (w/v) NaCl, while keeping centrifugation speed fixed at 4000 rpm. The calculated calibration curves gave high-level linearity for all target analytes with correlation coefficients ranging between 0.9970 and 0.9992. The repeatability and reproducibility of the proposed method, expressed as relative standard deviation, varied between 2.6% to 9.7% and 5.7% to 12.2%, respectively. The obtained LOD values were in the range of 8-63 ng L(-1). (C) 2009 Elsevier B.V. All rights reserved.
Περιγραφή
Λέξεις-κλειδιά
experimental design, response surface methodology, phthalic acid esters, polycyclic musks, electron-capture detection, solid-phase microextraction, chromatography-mass spectrometry, single-drop microextraction, flame photometric detection, polycyclic musk fragrances, gas-chromatography, waste-water, phthalate-esters, capillary-electrophoresis
Θεματική κατηγορία
Παραπομπή
Σύνδεσμος
<Go to ISI>://000269652800001
http://ac.els-cdn.com/S0003267009009337/1-s2.0-S0003267009009337-main.pdf?_tid=e4db451b959a6a45cf265c57e9b95789&acdnat=1333023260_7cd1d95c9fe9d024b525e12ab9c39b92
http://ac.els-cdn.com/S0003267009009337/1-s2.0-S0003267009009337-main.pdf?_tid=e4db451b959a6a45cf265c57e9b95789&acdnat=1333023260_7cd1d95c9fe9d024b525e12ab9c39b92
Γλώσσα
en
Εκδίδον τμήμα/τομέας
Όνομα επιβλέποντος
Εξεταστική επιτροπή
Γενική Περιγραφή / Σχόλια
Ίδρυμα και Σχολή/Τμήμα του υποβάλλοντος
Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείας