Evaluation of stir bar sorptive extraction for determination of chlorophenols in water samples using GC-MS

• Autorzy: Dudziak M. , Bodzek M.
• Języki publikacji: EN

Abstrakty

EN

The paper shows possible applications of a mobile sorptive unit that consisted of a olydimethylsiloxane (PDMS) stir bar to the determination of chlorophenols in water. Due to the high costs of thermal desorption devices, the release of chlorophenols from the sorptive unit into organic solvent was carried out in an ultrasonic field. Both the extraction time and the type of organic solvent were selected experimentally. The qualitative composition of the extract was studied by gas chromatography – mass spectrometry (GC – MS). The following optimum conditions for chlorophenols assays in water by SBSE – LD – GC/MS were determined: extraction time – 120 min., desorption with ethyl acetate – 15 min. The Stir Bar Sorptive Extraction (SBSE) used in the study is competitive with commonly used extraction techniques such as Solid Phase Extraction (SPE), Solid Phase Microextraction (SPME) or Liquid Phase Microextraction (LPME).

PL

Przedstawiono możliwości wykorzystania ruchomego elementu sorpcyjnego, który stanowił pręt z polidimetylosiloksanu PDMS, w procesie oznaczania chlorofenoli w wodzie. Z uwagi na wysoki koszt urządzeń do desorpcji termicznej, uwolnienie chlorofenoli z elementu sorpcyjnego do rozpuszczalnika organicznego dokonano, w polu ultradźwiękowym. Czas ekstrakcji jak i rodzaj rozpuszczalnika organicznego dobrano doświadczalnie. Jakościowy skład ekstraktu badano za pomocą chromatografii gazowej sprzężonej ze spektrometrią mas (GC – MS). Określono następujące optymalne warunki oznaczania chlorofenoli w wodzie metodą SBSE – LD – GC/MS: czas ekstrakcji 120 min. oraz desorpcji – 15 min. z użyciem octanu etylu. Przedstawiona w pracy metoda ekstrakcji z wykorzystaniem ruchomego elementu sorpcyjnego SBSE (Stir Bar Sorptive Extraction) jest konkurencyjna do powszechnie wykorzystywanych metod ekstrakcji takich jak ekstrakcja ciecz-ciecz, ekstrakcja do fazy stałej SPE (Solid Phase Extraction), mikroekstrakcja do fazy stacjonarnej SPME (Solid Phase Microextraction), jak i mikroekstrakcja do fazy ciekłej (Liquid Phase Microextraction LPME).

Słowa kluczowe

EN

chlorophenols; gas chromatography; extraction techniques

PL

chlorofenol; oznaczanie chlorofenoli; chromatografia gazowa; metody ekstrakcji

• Wydawca: Silesian University of Technology
• Czasopismo: Architecture Civil Engineering Environment
• Rocznik: 2009
• Tom: Vol. 2, no. 1
• Strony: 121--128
• Opis fizyczny: Bibliogr. 18 poz.

Twórcy

autor

Dudziak M.

autor

Bodzek M.

• Faculty of Energy and Environmental Engineering, The Silesian University of Technology, Konarskiego 18, 44-100 Gliwice, Poland,

Bibliografia

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