Gas chromatographic determination of 2-hydroxy-4-methoxybenzophenone and octyldimethyl-p-aminobenzoic acid sunscreen agents in swimming pool and bathing waters by solid-phase microextraction
Φόρτωση...
Ημερομηνία
Συγγραφείς
Lambropoulou, D. A.
Giokas, D. L.
Sakkas, V. A.
Albanis, T. A.
Karayannis, M. I.
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
Journal of Chromatography A
Όνομα βιβλίου
Σειρά βιβλίου
Έκδοση βιβλίου
Συμπληρωματικός/δευτερεύων τίτλος
Περιγραφή
A method has been developed for the trace determination of two sunscreen constituents (2-hydroxy-4-methoxybenzophenone and octyldimethyl-p-aminobenzoic acid) in water samples, which are commonly used in commercial formulations. The method employs solid-phase microextraction (SPME) and gas chromatography with flame ionization and mass spectrometric detection. The technique was developed with headspace and direct sampling in order to demonstrate the applicability of these SPME extraction modes for the identification of these two UV absorbing compounds in waters. The main parameters affecting the SPME process, such as desorption time, extraction time profile, salt additives, pH, and temperature, were investigated, The poly(dimethylsiloxane) 100-mum and polyacrylate 85-mum fiber coatings were found to be the most efficient for the extraction of these compounds from aqueous matrices, Linear calibration curves in the wide range of 10-500 mug/l were obtained for both compounds yielding typical RSD values of 5-9% for both extraction modes, ne recoveries were relatively high, 82-98%, with quantitation limits below I mug/l. A comparison between the proposed methods and the conventional multiresidue solid-phase extraction revealed that the proposed technique(s) can be reliably used for sunscreen residue measurement in water samples with satisfactory results. (C) 2002 Elsevier Science B.V. All rights reserved.
Περιγραφή
Λέξεις-κλειδιά
water analysis, headspace analysis, solid-phase microextraction, hydroxymethoxybenzophenone, octyldimethylaminobenzoic acid, sunscreen agents, performance liquid-chromatography, natural-waters, organophosphorus insecticides, environmental-analysis, cosmetic products, care products, uv-filters, pharmaceuticals, spectrometry, extraction
Θεματική κατηγορία
Παραπομπή
Σύνδεσμος
<Go to ISI>://000177317800008
http://ac.els-cdn.com/S0021967302007811/1-s2.0-S0021967302007811-main.pdf?_tid=d626bf06-349c-11e3-bce6-00000aacb35f&acdnat=1381733576_13123a302d54e9af9185aa517be89917
http://ac.els-cdn.com/S0021967302007811/1-s2.0-S0021967302007811-main.pdf?_tid=d626bf06-349c-11e3-bce6-00000aacb35f&acdnat=1381733576_13123a302d54e9af9185aa517be89917
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