Gas chromatographic determination of carbonyl compounds in biological and oil samples by headspace single-drop microextraction with in-drop derivatisation
Φόρτωση...
Ημερομηνία
Συγγραφείς
Fiamegos, Y. C.
Stalikas, C. D.
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
Analytica Chimica Acta
Όνομα βιβλίου
Σειρά βιβλίου
Έκδοση βιβλίου
Συμπληρωματικός/δευτερεύων τίτλος
Περιγραφή
A suitable method for the gas chromatographic determination of 10 characteristic carbonyls in biological and oil samples based on the in-drop formation of hydrazones by using 2,4,6-trichlorophenylhydrazine (TCPH), has been developed. The derivatisation-extraction procedure was optimized separately for aqueous and oil samples with respect to the appropriate organic drop solvent, drop volume, in-drop TCPH concentration, sample stirring rate, temperature during single-drop microextraction (SDME), reaction time and headspace-to-sample volume ratio. The optimization showed differentiation of optimum values between the studied matrices. The limits of detection were found to range from 0.001 to 0.003 mu g mL(-1) for the aqueous biological samples and from 0.06 to 0.20 mu g mL(-1) for the oil samples. The limits of quantification were in the range of 0.003-0.010 mu g mL(-1) and 0.020-0.059 mu g mL(-1) for aqueous and oil samples, respectively The overall relative standard deviations of the within-day repeatability and between-day reproducibility were < 4.4% and < 8.2% for the aqueous biological samples and < 3.9% and < 7.4% for the oxidized oil samples. (c) 2008 Elsevier B.V. All rights reserved.
Περιγραφή
Λέξεις-κλειδιά
headspace single-drop, microextraction 2,4,6-trichlorophenylhydrazine, aldehydes oil, plasma urine, solid-phase microextraction, on-fiber derivatization, electron-capture detection, mass-selective detection, lipid-peroxidation, human blood, thermal-desorption, fatty-acids, aldehydes, spectrometry
Θεματική κατηγορία
Παραπομπή
Σύνδεσμος
<Go to ISI>://000253616500005
http://ac.els-cdn.com/S0003267008000299/1-s2.0-S0003267008000299-main.pdf?_tid=bc649cd6541b25d91d3f8d6c13086de9&acdnat=1333040770_a324c5491e366865b8d2df111caf3e78
http://ac.els-cdn.com/S0003267008000299/1-s2.0-S0003267008000299-main.pdf?_tid=bc649cd6541b25d91d3f8d6c13086de9&acdnat=1333040770_a324c5491e366865b8d2df111caf3e78
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