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Comparison of photodiode array,evaporative light scattering,and single-quadrupole mass spectrometric detection methods for the UPLC analysis of pyrolysis liquids
Authors:Kristine Meile  Aivars Zhurinsh  Arturs Viksna
Institution:1. Department of Technological Research, Latvian State Institute of Wood Chemistry, Riga, Latvia;2. Department of Analytical Chemistry, University of Latvia, Riga, Latviakristine.meile@inbox.lv;4. Department of Analytical Chemistry, University of Latvia, Riga, Latvia
Abstract:It is important to analyze pyrolysis liquids to evaluate the yield of valuable products as well as unfavorable by-products. This work focuses on choosing detectors for reversed-phase ultra high-performance liquid chromatography analysis of pyrolysis liquids. The linearity, sensitivity, precision, and recovery of photodiode array (PDA) detector, single-quadrupole mass spectrometer (MS), and evaporative light scattering (ELS) detector were compared for the quantitative determination of several typical compounds found in pyrolysis liquids. PDA and MS detectors were found to be suitable for the quantification of furans and phenol derivatives (furfural, vanillin, syringol), but sugars and their derivatives (glucose, xylose, levoglucosan) can be analyzed with MS or ELS detectors.
Keywords:Evaporative light scattering detector  mass spectrometer  phenols  photodiode array detector  pyrolysis liquids  sugar derivatives  UPLC
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