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首页> 外文期刊>Analytical chemistry >Low-Cost Passive Sampling Device with Integrated Porous Membrane Produced Using Multimaterial 3D Printing
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Low-Cost Passive Sampling Device with Integrated Porous Membrane Produced Using Multimaterial 3D Printing

机译：具有多电网印刷生产的集成多孔膜的低成本无源采样装置

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摘要

Multimaterial 3D printing facilitates the rapid production of complex devices with integrated materials of varying properties and functionality. Herein, multimaterial fused deposition modeling (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 poly(vinyl 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 microparticulate sorbent. Scanning electron microscopy (SEM) analysis of the purified composite filament confirmed the porous properties of the material, an average pore size of similar to 30 nm. The printed passive samplers with various membrane thicknesses, including 0.5, 1.0, and 1.5 mm, 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 the 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 poly(ether sulfone) membrane.
机译：多维3D打印有助于快速生产具有不同特性和功能的集成材料。这里，用集成多孔膜对低成本无源采样器装置的制造进行多维融合沉积建模（MM-FDM）3D打印。使用MM-FDM 3D打印，使用黑色聚乳酸制造装置体，孔隙铺设丝状长丝用于印刷集成的多孔膜（橡胶 - 弹性体聚合物，除去水溶性多溶液后多孔）（乙烯醇）组分）。所得到的装置由两个互锁圆形框架组成，每个互锁圆形框架含有集成膜，其可以有效地密封在一起，而不需要额外的O形环，并且防止封闭的微粒吸附剂损失。扫描电子显微镜（SEM）分析纯化的复合长丝证实了材料的多孔性质，平均孔径为30nm。评价具有各种膜厚度的印刷无源采样器，包括0.5,1.0和1.5mm，以便于在标准条件下促进阿特拉嗪作为模型溶质溶解到内部吸附剂上的能力。气相色谱 - 质谱法用于确定从标准水样中的装置采用阿特拉嗪，也可以评估从印刷材料的任何化学浸出。具有0.5mm厚膜的采样器显示出最佳性能，耗尽87％，采样率为0.19 LD（-1）（n = 3，％RSD = 0.59）。使用具有集成膜的这些印刷取样装置获得的结果与配有标准聚（醚砜）膜配备的装置密切一致。

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  • 来源
    《Analytical chemistry》 |2018年第20期|共9页
  • 作者

    Kalsoom Umme; Hasan Chowdhury Kamrul; Tedone Laura; Desire Christopher; Li Feng; Breadmore Michael C.; Nesterenko Pavel N.; Paull Brett;

  • 作者单位

    Univ Tasmania Sch Nat Sci ACROSS Private Bag 75 Hobart Tas 7001 Australia;

    Univ Tasmania Sch Nat Sci ACROSS Private Bag 75 Hobart Tas 7001 Australia;

    Univ Tasmania Sch Nat Sci ACROSS Private Bag 75 Hobart Tas 7001 Australia;

    Univ Tasmania Sch Nat Sci ACROSS Private Bag 75 Hobart Tas 7001 Australia;

    Univ Tasmania Sch Nat Sci ACROSS Private Bag 75 Hobart Tas 7001 Australia;

    Univ Tasmania Sch Nat Sci ACROSS Private Bag 75 Hobart Tas 7001 Australia;

    Univ Tasmania Sch Nat Sci ACROSS Private Bag 75 Hobart Tas 7001 Australia;

    Univ Tasmania Sch Nat Sci ACROSS Private Bag 75 Hobart Tas 7001 Australia;

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  • 正文语种 eng
  • 中图分类 分析化学;
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