Liquid-phase micro-extraction techniques in pesticide residue analysis
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
J Biochem Biophys Methods
Όνομα βιβλίου
Σειρά βιβλίου
Έκδοση βιβλίου
Συμπληρωματικός/δευτερεύων τίτλος
Περιγραφή
Modem trends in analytical chemistry are towards the simplification and miniaturization of sample preparation, as well as the minimization of organic solvent used. In view of this aspect, several novel micro-extraction techniques are being developed in order to reduce the analysis step, increase the sample throughput and to improve the quality and the sensitivity of analytical methods. One of the emerging techniques in this area is liquid-phase micro-extraction (LPME). It is a miniaturized implementation of conventional liquid/liquid extraction (LLE) in which only microliters of solvents are used instead of several hundred milliliters in LLE. It is quick, inexpensive and can be automated. In the last few years, LPME has been combined with liquid chromatography (LC) and capillary electrophoresis (CE), besides the generally used coupling to gas chromatography (GC), and has been applied to various matrices, including biological, environmental, and food samples. This work is aimed at providing an overview of the major developments of LPME, coupled with chromatography and CE, as reported in the literature. The paper will focus on the application of the technique to different matrices and the aim is to reveal the panorama of opportunities and to try to indicate the potential of LPME in pesticide analysis. A critical review of the first applications to pesticide analyses is presented in the main part of the manuscript. The optimization of LPME as well as advantages and disadvantages are discussed. It is concluded that, because of its high preconcentration factor, LPME can be introduced with benefit into water analysis for several pesticide groups. In particular, the application of LPME to non-polar pesticides in environmental analysis appears to be promising. However, similar to other micro-extraction techniques, such as solid phase micro-ex traction (SPME), serious limitations still remain when analyzing semi-solid and solid environmental, food or biological matrices and/or highly polar compounds. Thus, other pre-concentration techniques may be a good alternative if an analytical problem cannot be sufficiently dealt with LPME. (c) 2006 Elsevier B.V. All rights reserved.
Περιγραφή
Λέξεις-κλειδιά
liquid-phase micro-extraction, single-drop micro-extraction, membrane extraction, pesticides, chromatography, environmental analysis, food analysis, chromatography-mass-spectrometry, single-drop microextraction, headspace solvent microextraction, electron-capture detection, hollow-fiber membrane, polycyclic aromatic-hydrocarbons, continuous-flow microextraction, persistent organic pollutants, capillary gas-chromatography, simultaneous back-extraction
Θεματική κατηγορία
Παραπομπή
Σύνδεσμος
<Go to ISI>://000245157100006
http://ac.els-cdn.com/S0165022X06001989/1-s2.0-S0165022X06001989-main.pdf?_tid=868731ded1ead50c837a6c668233e934&acdnat=1333023119_3e79d1f7ee7adb4c3c11b00ac03e0183
http://ac.els-cdn.com/S0165022X06001989/1-s2.0-S0165022X06001989-main.pdf?_tid=868731ded1ead50c837a6c668233e934&acdnat=1333023119_3e79d1f7ee7adb4c3c11b00ac03e0183
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