Headspace solid-phase microextraction in combination with gas chromatography-mass spectrometry for the rapid screening of organophosphorus insecticide residues in strawberries and cherries
Φόρτωση...
Ημερομηνία
Συγγραφείς
Lambropoulou, D. A.
Albanis, T. A.
Τίτλος Εφημερίδας
Περιοδικό ISSN
Τίτλος τόμου
Εκδότης
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 headspace solid-phase microextraction (HS-SPME) method in combination with GC-MS was used for the extraction and quantification of diazinon, fenitrothion, fenthion, parathion ethyl, bromophos methyl, bromophos ethyl and ethion. The method was developed using a 100-mum poly(dimethylsiloxane) fiber. The obtained results showed higher responses of the insecticides after addition of aliquots of water and solvent to the fruit samples. Calibration curves that were constructed for the analytes spiked into strawberry and cherry samples followed linear relationships with good correlation coefficients (R(2) > 0.986). Linearity range was between 50 and 500 mug/kg and the precision was found to be lower than 15% when applying the optimized HS-SPME procedure to fruit samples. Limits of detection in both strawberry and cherry samples using GC-MS (selected ion monitoring mode) were below 13 mug/kg. Moreover, the HS-SPME method was applied to the analysis of fruit samples and compared with liquid-liquid extraction. Results obtained in this study were in good agreement with those obtained using liquid-liquid extraction demonstrating that the recommended procedure was a fast, accurate and stable sample pretreatment method obtaining good efficiency for the extraction of organophosporus insecticides from strawberries and cherries. (C) 2003 Elsevier Science B.V. All rights reserved.
Περιγραφή
Λέξεις-κλειδιά
headspace analysis, food analysis, sample preparation, fruits, organophosphorus compounds, pesticides, electron-capture detection, pesticide-residues, organochlorine pesticides, water, extraction, samples, detoxification, validation, fruits, soil
Θεματική κατηγορία
Παραπομπή
Σύνδεσμος
<Go to ISI>://000182174600021
http://ac.els-cdn.com/S0021967303003972/1-s2.0-S0021967303003972-main.pdf?_tid=7ee7d1c8826d6878f369ec937fa0a6e7&acdnat=1333023082_bc609789674ee5d2ae6c4356d0da02c7
http://ac.els-cdn.com/S0021967303003972/1-s2.0-S0021967303003972-main.pdf?_tid=7ee7d1c8826d6878f369ec937fa0a6e7&acdnat=1333023082_bc609789674ee5d2ae6c4356d0da02c7
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