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A Low-Cost Passive Sampling Device with Integrated Porous Membrane Produced using Multi-Material 3D Printingстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 26 ноября 2018 г.
- Авторы: Kalsoom U., Hasan C.K., Desire C., Nesterenko P.N., Paull B.
- Журнал: Analytical Chemistry
- Том: 90
- Номер: 20
- Год издания: 2018
- Издательство: American Chemical Society
- Местоположение издательства: United States
- Первая страница: 12081
- Последняя страница: 12089
- DOI: 10.1021/acs.analchem.8b02893
- Аннотация: Multi-material 3D printing facilitates the rapid production of complex devices with integrated materials of varying properties and functionality. Herein, multi-material fused deposition modelling (MM-FDM) 3D printing was applied to the fabrication of low cost passive sampler devices with integrated porous membranes. Using MM-FDM 3D printing, the device body was produced using black polylactic acid, with Poro-Lay Lay-Felt filament used for the printing of the integrated porous membranes (rubber-elastomeric polymer, porous after removal of a water soluble polyvinyl alcohol component). The resulting device consisted of two interlocking circular frames, each containing the integrated membrane, which could be efficiently sealed together without the need for additional O-rings, and prevented loss of enclosed micro-particulate sorbent. SEM analysis of the purified composite filament confirmed the porous properties of the material, an average pore size of ~30 nm. The printed passive samplers with various membrane thicknesses (mm), including 0.5, 1.0, and 1.5, were evaluated for their ability to facilitate the extraction of atrazine as the model solute onto the internal sorbent, under standard conditions. Gas chromatography-mass spectrometry was used to determine the uptake of atrazine by the device from standard water samples, and also to evaluate any chemical leaching from the printed materials. The sampler with 0.5 mm thick membrane showed best performance with 87 % depletion and a sampling rate of 0.19 Ld-1 (n= 3, % RSD= 0.59). The results obtained using these printed sampling devices with integrated membranes were in close agreement to devices fitted with a standard polyethersulfone membrane.
- Добавил в систему: Нестеренко Павел Николаевич