Electrochemiluminescence detection of methamphetamine based on a Ru(bpy)₃(2+)-doped silica nanoparticles/Nafion composite film modified electrode.
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.
Cai
Zhimin
Z
Department of Chemistry and Key Laboratory of Analytical Sciences of Ministry of Education, Xiamen University, Xiamen, China.
Lin
Zhijie
Z
Chen
Xiaomei
X
Jia
Tiantian
T
Yu
Ping
P
Chen
Xi
X
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
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