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- W2002702277 abstract "A new electrochemiluminescence (ECL) detector for capillary electrophoresis (CE) based on tris(2,2'-bipyridyl)ruthenium(II) (Ru(bpy)(3)(2+)) immobilized in Nafion/PTC-NH(2) (an ammonolysis product of 3,4,9,10-perylenetetracarboxylic dianhydride (PTCDA)) composite film was presented for the first time. The Nafion/PTC-NH(2) composite film could effectively immobilize tris(2,2'-bipyridyl)ruthenium(II) via ion-exchange and electrostatic interaction. Cyclic voltammetric and ECL behavior of Nafion/PTC-NH(2)/Ru composite film was investigated compared to Nafion/Ru composite. The Nafion/PTC-NH(2)/Ru composite film exhibited good ECL stability and simple operability. Then the CE with solid-state ECL detector system was successfully used to detect sophora - a quinolizidine type - alkaloids as sophoridine (SR) and matrine (MT). The CE-ECL parameters that affected separation and detection were optimized. Under the optimized conditions, the linear range was from 2.5 × 10(-8) to 2 × 10(-6)mol/L for SR, 1.0 × 10(-8) to 1.0 × 10(-6)mol/L for MT. The detection limit (S/N=3) was estimated to be 5 × 10(-9) and 10(-9)mol/L for SR and MT, respectively. It was shown that the CE coupling with solid-state ECL detector system exhibited satisfying sensitivity of analysis." @default.
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- W2002702277 date "2011-04-01" @default.
- W2002702277 modified "2023-10-18" @default.
- W2002702277 title "A novel solid-state electrochemiluminescence detector for capillary electrophoresis based on tris(2,2′-bipyridyl)ruthenium(II) immobilized in Nafion/PTC-NH2 composite film" @default.
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- W2002702277 doi "https://doi.org/10.1016/j.talanta.2011.01.009" @default.
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