Simultaneous determination of chlorothalonil and its metabolite 4-hydroxychlorothalonil in greenhouse air: Dissipation process of chlorothalonil
Φόρτωση...
Ημερομηνία
Συγγραφείς
Kazos, E. A.
Nanos, C. G.
Stalikas, C. D.
Konidari, C. N.
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
Chemosphere
Όνομα βιβλίου
Σειρά βιβλίου
Έκδοση βιβλίου
Συμπληρωματικός/δευτερεύων τίτλος
Περιγραφή
An analytical method was developed and tested for the simultaneous determination of chlorothalonil and its main metabolite 4-hydroxychlorothalonil, in airborne samples. High performance liquid chromatography equipped with Ultra-violet detector was used to separate and quantify the analytes. Glass microfibre filters for the collection of the analytes' particles were tested. Solid sorbents, such as Tenax, Florisil, XAD-2 and silica gel, were studied to find out the most suitable material for the collection of the analytes in the gas phase. The results have shown that only chlorothalonil was trapped in the vapor phase with highest results obtained when silica gel was the sorbent of choice. Linearity was demonstrated in a wide concentration range 0.01-10.00 mg L-1. Recoveries from spiked glass microfibre filters and silica gel cartridges for chlorothalonil and 4-hydroxychlorothalonil were almost quantitative. The quantification limits were calculated to be 8.4 and 19.6 ng m(-3) in air for chlorothalonil and 4-hydroxychlorothalonil, respectively. The two analytes spiked on the GF/A filters and silica gel cartridges were proven to be stable for more than 15 days, at 4 degrees C and ambient temperature. The applicability of the present method was demonstrated by the analysis of the chlorothalonil and its metabolite in greenhouse air. (C) 2008 Elsevier Ltd. All rights reserved.
Περιγραφή
Λέξεις-κλειδιά
fungicides, chlorothalonil, 4-hydroxychlorothalonil, air sampling, hplc, gas-chromatography, degradation-products, agricultural soil, chlorpyrifos, pesticides, transformation, residues, exposure, water
Θεματική κατηγορία
Παραπομπή
Σύνδεσμος
<Go to ISI>://000259166200003
http://ac.els-cdn.com/S004565350800708X/1-s2.0-S004565350800708X-main.pdf?_tid=3f76a92083706876bb9eb1338be8ced6&acdnat=1333030727_3dd4d5f0e96ffe072c9048c1598e5247
http://ac.els-cdn.com/S004565350800708X/1-s2.0-S004565350800708X-main.pdf?_tid=3f76a92083706876bb9eb1338be8ced6&acdnat=1333030727_3dd4d5f0e96ffe072c9048c1598e5247
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