Hangzhen Lan
University of Helsinki
9 Papers
17 Citations
Hangzhen Lan is an academic researcher from University of Helsinki. The author has contributed to research in topics: Solid-phase microextraction & Extraction (chemistry). The author has an hindex of 6, co-authored 9 publications.
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Papers
Modified zeolitic imidazolate framework-8 as solid-phase microextraction Arrow coating for sampling of amines in wastewater and food samples followed by gas chromatography-mass spectrometry
Hangzhen Lan,Tuukka Rönkkö,Jevgeni Parshintsev,Kari Hartonen,Ning Gan,Motolani Sakeye,Jawad Sarfraz,Marja-Liisa Riekkola +7 more
TL;DR: The method was successfully applied to the determination of TMA and TEA in wastewater, salmon and mushroom samples giving satisfactory selectivity towards the studied amines.
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Aerial drone as a carrier for miniaturized air sampling systems.
Jose Ruiz-Jimenez,Nicola Zanca,Hangzhen Lan,Matti Jussila,Kari Hartonen,Marja-Liisa Riekkola +5 more
TL;DR: The applicability of an aerial drone as a carrier for new passive and active miniaturized air sampling systems, including solid phase microextration Arrow and in-tube extraction (ITEX), was studied in this research and the effect of the aerial drone horizontal displacement (HD) on the sampling efficiency was clear.
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Miniaturised air sampling techniques for analysis of volatile organic compounds in air
TL;DR: In this article, the authors focus on the latest developments in these techniques, including needle trap microextraction (NTME), in-tube extraction (ITEX), sorption trap, solid-phase micro extractions (SPME fibre, SPME Arrow, and retracted SPMME fibre), thin-film microextractions (TFME), solid phase dynamic extraction (SPDE), and stir bar sorptive extraction (SBSE), and discuss their benefits, drawbacks, and applicability to air sampling.
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Selective extraction of aliphatic amines by functionalized mesoporous silica-coated solid phase microextraction Arrow.
Hangzhen Lan,Wenzhong Zhang,Jan-Henrik Smått,Risto Koivula,Kari Hartonen,Marja-Liisa Riekkola +5 more
TL;DR: SPME Arrow with MCM-41 coatings followed by GC-MS was applied also to the analysis of atmospheric air and urine samples resulting in high selectivity due to the size and mesoporous structure of the functionalized silica, and its chemical interactions with the LMWAAs.
Quantitative analysis and spatial and temporal distribution of volatile organic compounds in atmospheric air by utilizing drone with miniaturized samplers
Hangzhen Lan,Jose Ruiz-Jimenez,Yevgeny Leleev,Giorgia Demaria,Matti Jussila,Kari Hartonen,Marja-Liisa Riekkola +6 more
TL;DR: In this article, the second generation air sampling drone system, allowing the simultaneous use of four solid phase microextraction (SPME) Arrow and four in-tube extraction (ITEX) units, was employed for collection of atmospheric air samples at different spatial and temporal dimensions.
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