7 Papers
20 Citations
Zhenxia Du is an academic researcher from Beijing University of Chemical Technology. The author has contributed to research in topics: Chemistry & Solid phase extraction. The author has an hindex of 7, co-authored 7 publications.
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Papers
Detection of seven pesticides in cucumbers using hollow fibre-based liquid-phase microextraction and ultra-high pressure liquid chromatography coupled to tandem mass spectrometry.
TL;DR: A liquid-phase microextraction (LPME) methodology based on the use of porous polyvinylidene fluoride (PVDF) hollow fibres was developed for extracting seven pesticides from cucumbers, providing higher extraction efficiency due to its higher porosity and better solvent compatibility.
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Simultaneous determination of 16 polycyclic aromatic hydrocarbons in reclaimed water using solid-phase extraction followed by ultra-performance convergence chromatography with photodiode array detection.
TL;DR: The results showed that polycyclic aromatic hydrocarbons were dramatically decreased after chemical treatment procedure, and the oxidation procedure was effective to remove trace poly cyclic aromatic Hydrocarbons.
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A new method research for determination of natural pigment crocin yellow in foods by solid-phase extraction ultrahigh pressure liquid chromatography
TL;DR: The recoveries of crocin yellow added to soft drinks, sausages and sauces at three levels ranged from 81.3% to 106.2%, and relative standard deviations (RSDs) were within 8.8%.
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Atmospheric Pressure Chemical Ionization Gas Chromatography Mass Spectrometry for the Analysis of Selected Emerging Brominated Flame Retardants in Foods.
TL;DR: This is the first report on the presence of PBT in food samples with non-ignorable concentrations and detection rate.
Rapid identification of polymer additives by atmospheric solid analysis probe with quadrupole time‐of‐flight mass spectrometry
TL;DR: A rapid identification method has been developed for polymer additives by ASAP-QTOFMS assisted by a pre-built MS library, which was found to be a promising tool in the rapid analysis of additives in polymers and polymer matrices.
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