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A three-dimensional printed electromembrane extraction device for capillary electrophoresis


Tan, M and Zhang, M and Li, F and Maya, F and Breadmore, MC, A three-dimensional printed electromembrane extraction device for capillary electrophoresis, The Journal of Chromatography A, 1595 pp. 215-220. ISSN 0021-9673 (2019) [Refereed Article]

Copyright Statement

2019 Elsevier B.V. All rights reserved.

DOI: doi:10.1016/j.chroma.2019.02.023


A concentric electromembrane extraction preconcentration device was designed and fabricated using fused deposition modelling 3D printing. The device consisted of a hemispherical electrode sample vial printed from a filament of conductive polylactic acid (PLA), into which sat a smaller hemispherical 3D printed porous membrane acceptor vial. Application of voltage between a point-electrode placed in the center of 20 μL solution inside the acceptor vial and the electrode vial containing 1 mL of sample, enabled anion migration through the 3D printed porous material into the acceptor solution. Electromembrane extraction was proved using fluorescein for imaging of the extraction process, with preconcentration rates of 0.833 μM/sec at 120 V with close to 95% recovery. The performance of the fabricated porous 3D printed device was evaluated for the preconcentration of anions from water prior to capillary electrophoresis detection. Preconcentration factors ranging between 3644 were obtained for chloride, nitrate, perchlorate and sulfate, while a lower performance was observed for weaker acids as fluoride and phosphate (34). The limit of detection (LOD) was determined to be 0.16 μM, 0.18 μM and 0.18 μM for NO3, ClO4 and SO42- respectively. The extraction and quantitation of ions from a soil slurry without filtration, namely NO3 and SO42- content was determined to be 0.24 and 0.03 mmol/100 g of soil, respectively which are values in the range of those typically reported in soil samples.

Item Details

Item Type:Refereed Article
Keywords:3D printing, capillary electrophoresis
Research Division:Chemical Sciences
Research Group:Analytical chemistry
Research Field:Separation science
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the chemical sciences
UTAS Author:Tan, M (Miss Ming Li Tan)
UTAS Author:Li, F (Mr Feng Li)
UTAS Author:Maya, F (Mr Fernando Maya Alejandro)
UTAS Author:Breadmore, MC (Professor Michael Breadmore)
ID Code:134612
Year Published:2019
Web of Science® Times Cited:20
Deposited By:Chemistry
Deposited On:2019-08-22
Last Modified:2019-09-06

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