A novel three‐dimensional printed device with conductive elements for electromembrane extraction combined with high‐performance liquid chromatography and ultraviolet detector

This study is focused on proposing a new design and setup for electromembrane extraction. A new cap was designed and conductive vials of different shapes were fabricated using three‐dimensional printing. The new cap holds three fibers to enhance electromembrane extraction recovery. Conductive vials...

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Bibliographic Details
Published in:Journal of separation science 2022-08, Vol.45 (16), p.3187-3196
Main Authors: Dolatabadi, Roshanak, Mohammadi, Ali, Walker, Roderick B
Format: Article
Language:English
Subjects:
Analytical chemistry
conductive vial
Electric potential
Electrodes
electromembrane extraction
Liquid chromatography
Mathematical models
Octanol
Phenobarbital
phenytoin
Recovery
three‐dimensional printing
Ultraviolet detectors
Voltage
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Summary:This study is focused on proposing a new design and setup for electromembrane extraction. A new cap was designed and conductive vials of different shapes were fabricated using three‐dimensional printing. The new cap holds three fibers to enhance electromembrane extraction recovery. Conductive vials can simultaneously perform as electrodes therefore, there is no need to include an electrode in sample solutions. Phenobarbital and phenytoin were used as model compounds to assess the setup performance. Under optimal conditions, these analytes were extracted from the sample solution at pH = 9 to the acceptor solution at pH = 13 with a voltage of 40 V for 20 min, while 1‐octanol was employed as the supported‐liquid‐membrane. The influence of conductive vials geometry on the recovery was examined and the effects of different shapes were studied by performing numerical simulation to establish electric potential distribution. Of the vials tested with circular, triangular, and floral‐like cross‐sections the latter exhibited the best voltage distribution. The circular vial had the highest recovery attributed to its better hydrodynamic shape, which allows rapid fluid sample transport and therefore enhanced system recovery. The extraction recovery and relative standard deviation of the circular vial with three fibers were 33.0 and 7.6 for phenobarbital and 42.2 and 10.4 for phenytoin.
ISSN:1615-9306
1615-9314
DOI:10.1002/jssc.202200028