title: Fabrication of a poly(dimethylsiloxane)-based electrochemiluminescence detection cell for capillary electrophoresis.
abstract: An easy but effective technique is described here for quick fabrication of low-cost electrochemiluminescence detection cells for capillary electrophoresis. The technique is based on molding of poly(dimethylsiloxane) (PDMS) with a capillary column inserted into a pipet tip. Two access holes are left in the PDMS slab; they provide neat accommodations for the separation capillary and the working electrode made with the same type of tip. Since the access holes are well-aligned, the electrode and the capillary are automatically aligned; thus, end-column detection is easily obtained. Fabrication of the detection cell is straightforward; no micromechanical operation is included. Also the principle for the procedure makes it possible to efficiently batch production detection cells with good reproducibility. Because of the end-column scheme, the cell can be adopted for electrophoresis with electrochemical detection as well.
authors.affiliation: State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.
authors.forename: Jilin
authors.initials: J
authors.lastname: Yan
authors.forename: Xiurong
authors.initials: X
authors.lastname: Yang
authors.forename: Erkang
authors.initials: E
authors.lastname: Wang