title: Electrochemical detector based on sol-gel-derived carbon composite material for capillary electrophoresis microchips.
abstract: An on-chip disk electrode based on sol-gel-derived carbon composite material could be easily and reproducibly fabricated. Unlike other carbon-based electrodes reported previously, this detector is rigid, convenient to fabricate, and amenable to chemical modifications. Based on the stable and reproducible characters of this detector, a copper particle-modified detector was developed for the detection of carbohydrates which extends the application of the carbon-based electrode. In our experiments, the performance of the new integrated detector for rapid on-chip measurement of epinephrine and glucose was illustrated. Experimental procedures including the fabrication of this detector, the configuration of separation channel outlet and electrode verge, and the performance characteristics of this new electrochemical detector were investigated.
authors.affiliation: State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China.
authors.forename: Xiuhua
authors.initials: X
authors.lastname: Sun
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
mesh_terms: D002244:Carbon / Q000737:chemistry; D046209:Electrophoresis, Microchip / Q000295:instrumentation*; D005782:Gels / Q000737:chemistry; D008839:Microelectrodes; D008904:Miniaturization / Q000295:instrumentation
chemical_list: D005782:Gels; D002244:Carbon