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Determination of phenols in pyrolysis oil by on‐line coupled microporous membrane liquid‐liquid extraction and multidimensional liquid chromatography
Author(s) -
Hyötyläinen Tuulia,
Andersson Terhi,
Jussila Matti,
Wiedmer Susanne K.,
Rautiainen Minna,
Riekkola MarjaLiisa
Publication year - 2001
Publication title -
journal of separation science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.72
H-Index - 102
eISSN - 1615-9314
pISSN - 1615-9306
DOI - 10.1002/1615-9314(20010801)24:7<544::aid-jssc544>3.0.co;2-v
Subject(s) - chromatography , pyrolysis , liquid–liquid extraction , chemistry , microporous material , pyrolysis oil , phenols , extraction (chemistry) , membrane , organic chemistry , biochemistry
An efficient and fast method was developed for the determination of phenols in pyrolysis oils. Microporous membrane liquid‐liquid extraction (MMLLE) was applied in sample pretreatment and samples were analyzed by multidimensional liquid chromatography. The pyrolysis oil was dissolved in a suitable organic solvent and then continuously pumped through the donor side of the MMLLE system. The acceptor solution was a highly basic aqueous solution, which was kept stagnant during the extraction. The extract was transferred via a loop to the multidimensional LC system. Capillary electrophoresis was investigated for qualitative analysis of the extract. After separation, the phenols were identified by diode array detection and mass spectrometry. The method was quantitative, repeatable and linear, and limits of detection were in the range of 0.01–0.12% w/w .