Finite element modeling simulation-assisted design of integrated microfluidic chips for heavy metal ion stripping analysis. (18th September 2017)

• Record Type: Journal Article
• Authors: Hong, Ying; Zou, Jianhua; Ge, Gang; Xiao, Wanyue; Gao, Ling; Shao, Jinjun; Dong, Xiaochen
• Is Part Of: Journal of physics. Volume 50:Number 41(2017)
• Publication Date: 2017-09-18
• Subjects: FEM simulation -- 3D printing -- microfluidic device -- heavy metal ions -- stripping analysis; Physics -- Periodicals; 530
• DOI: 10.1088/1361-6463/aa84a3
• Languages: English
• ISSNs: 0022-3727

Abstract

Abstract: In this article, a transparent integrated microfluidic device composed of a 3D-printed thin-layer flow cell (3D-PTLFC) and an S-shaped screen-printed electrode (SPE) has been designed and fabricated for heavy metal ion stripping analysis. A finite element modeling (FEM) simulation is employed to optimize the shape of the electrode, the direction of the inlet pipeline, the thin-layer channel height and the sample flow rate to enhance the electron-enrichment efficiency for stripping analysis. The results demonstrate that the S-shaped SPE configuration matches the channel in 3D-PTLFC perfectly for the anodic stripping behavior of the heavy metal ions. Under optimized conditions, a wide linear range of 1–80 µ g l −1 is achieved for Pb 2+ detection with a limit of 0.3 µ g l −1 for the microfluidic device. Thus, the obtained integrated microfluidic device proves to be a promising approach for heavy metal ions stripping analysis with low cost and high performance.