Ιδρυματικό Αποθετήριο [SANDBOX]
Πολυτεχνείο Κρήτης
EN  |  EL

Αναζήτηση

Πλοήγηση

Ο Χώρος μου

Development of a hollow fibre liquid phase microextraction method to monitor thesonochemical degradation of explosives in water

Psyllaki Eleftheria, Mantzavinos Dionysis, Kalogerakis Nikos

Απλή Εγγραφή


URIhttp://purl.tuc.gr/dl/dias/D6D40A86-3AC1-4672-A51A-D907481A4826-
Αναγνωριστικόhttps://doi.org/0.1016/j.aca.2003.09.015-
Αναγνωριστικόhttp://www.sciencedirect.com/science/article/pii/S000326700301211X-
Γλώσσαen-
Μέγεθος8 pagesen
ΤίτλοςDevelopment of a hollow fibre liquid phase microextraction method to monitor the sonochemical degradation of explosives in wateren
ΔημιουργόςPsyllaki Eleftheriaen
ΔημιουργόςΨυλλακη Ελευθεριαel
ΔημιουργόςMantzavinos Dionysisen
ΔημιουργόςΜαντζαβινος Διονυσηςel
ΔημιουργόςKalogerakis Nikosen
ΔημιουργόςΚαλογερακης Νικοςel
ΕκδότηςElsevieren
ΠερίληψηA novel method for the enrichment of nitroaromatic compounds present in water samples is presented here coupling hollow fibre liquid phase microextraction (LPME) with gas chromatography. A hydrophobic porous polypropylene hollow fibre was used as the interface between the donor water sample and microvolumes of the acceptor organic phase. Parameters such as extraction solvent, stirring rate, salt concentration and sampling time were studied and optimised. Overall, extraction of 11 nitroaromatics was achieved by exposing 3l of toluene for 20 min in a 5 ml stirred aqueous solution at room temperature. The developed protocol yielded a linear calibration graph in the concentration range 10–500g l−1 and the limits of detection were calculated to range between 0.29 and 0.87g l−1. Precision expressed in terms of relative standard deviation varied between 6.1 and 11.8%. The developed hollowfibreLPMEmethodwas subsequently used successfully to monitor the sonochemical degradation of an aqueous solution containing 100g l−1 of each target analyte at an ultrasonic frequency of 80 kHz. Ultrasonic treatment was found capable of efficiently removing the 2-, 3- and 4-nitrotoluene isomers as well as the 2- and 4-amino dinitrotoluene isomers within 300 min of irradiation. The rest of the analytes were more recalcitrant and significant removal was not observed even after prolonged times of ultrasonic irradiation.en
ΤύποςPeer-Reviewed Journal Publicationen
ΤύποςΔημοσίευση σε Περιοδικό με Κριτέςel
Άδεια Χρήσηςhttp://creativecommons.org/licenses/by/4.0/en
Ημερομηνία2015-09-24-
Ημερομηνία Δημοσίευσης2004-
Θεματική ΚατηγορίαLiquid phase microextractionen
Θεματική ΚατηγορίαNitroaromaticsel
Θεματική ΚατηγορίαExtractionen
Θεματική ΚατηγορίαUltrasounden
Βιβλιογραφική ΑναφοράE. Psillakis, D. Mantzavinos and N. Kalogerakis, "Development of a hollow fibre liquid phase microextraction method to monitor the sonochemical degradation of explosives in water," Anal. Chim. Acta, vol. 501, no.1, pp. 3–10, Jan. 2004 doi: 0.1016/j.aca.2003.09.015en

Διαθέσιμα αρχεία

Υπηρεσίες

Στατιστικά