title: Electrochemiluminescence detection of methamphetamine based on a Ru(bpy)₃(2+)-doped silica nanoparticles/Nafion composite film modified electrode.
abstract: An electrochemiluminescence (ECL) approach for methamphetamine determination was developed based on a glassy carbon electrode modified with a Ru(bpy)₃ (2+)-doped silica nanoparticles/Nafion composite film. The monodispersed nanoparticles, which were about 50 nm in size, were synthesized using the water-in-oil microemulsion method. The ECL results revealed that Ru(bpy)₃ (2+) doped in silica nanoparticles retained its original photo- and electrochemical properties. The ECL intensity was found to be proportional to methamphetamine concentration over the range from 1.0 × 10(-7) to 1.0 × 10(-5) mol L(-1), and the detection limit was found to be 2.6 × 10(-8) mol L(-1). The proposed ECL approach was used to analyze the methamphetamine content in drugs.
authors.affiliation: Department of Chemistry and Key Laboratory of Analytical Sciences of Ministry of Education, Xiamen University, Xiamen, China.
authors.forename: Zhimin
authors.initials: Z
authors.lastname: Cai
authors.forename: Zhijie
authors.initials: Z
authors.lastname: Lin
authors.forename: Xiaomei
authors.initials: X
authors.lastname: Chen
authors.forename: Tiantian
authors.initials: T
authors.lastname: Jia
authors.forename: Ping
authors.initials: P
authors.lastname: Yu
authors.forename: Xi
authors.initials: X
authors.lastname: Chen
mesh_terms: D002244:Carbon / Q000737:chemistry; D004563:Electrochemistry; D004566:Electrodes; D005465:Fluorocarbon Polymers / Q000737:chemistry*; D008163:Luminescent Measurements; D008567:Membranes, Artificial; D008694:Methamphetamine / Q000032:analysis*; D053758:Nanoparticles / Q000737:chemistry*; D009942:Organometallic Compounds / Q000737:chemistry*; D012822:Silicon Dioxide / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D005465:Fluorocarbon Polymers; D008567:Membranes, Artificial; D009942:Organometallic Compounds; C415768:tris(2,2'-bipyridyl)ruthenium(II); C040402:perfluorosulfonic acid; D008694:Methamphetamine; D002244:Carbon; D012822:Silicon Dioxide