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- W2034381305 abstract "In the present work, a novel method for immobilization of carbon nanotubes (CNTs) on the surface of graphite electrode was proposed. We further found that superoxide ion was electrogenerated on this CNTs-modified electrode, which can react with sulfide ion combing with a weak but fast electrogenerated chemiluminescence (ECL) emission, and this weak ECL signal could be enhanced by the oxidative products of rhodamine B. In addition, the rate constant of this electrochemical reaction k0 was investigated and confirmed that the speed of electrogenerating superoxide ion was in accordance with the subsequent fast CL reaction. Thus, the fast CL reaction of superoxide ion with target brought in the possibility of high selectivity based on time-resolved, relative to other interferences. Based on these findings, an excellently selective and highly sensitive ECL method for sulfide ion was developed. Under the optimum conditions, the enhancing ECL signals were linear with the sulfide ion concentration in the range from 6.0 × 10−10 to 1.0 × 10−8 mol L−1, and a 2.0 × 10−10 mol L−1 detection limits (3σ) was achieved. In addition, the proposed method was successfully used to detect sulfide ion in environmental water samples." @default.
- W2034381305 created "2016-06-24" @default.
- W2034381305 creator A5015309831 @default.
- W2034381305 creator A5036055317 @default.
- W2034381305 creator A5053974464 @default.
- W2034381305 date "2007-01-01" @default.
- W2034381305 modified "2023-09-23" @default.
- W2034381305 title "Highly selective electrogenerated chemiluminescence (ECL) for sulfide ion determination at multi-wall carbon nanotubes-modified graphite electrode" @default.
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- W2034381305 doi "https://doi.org/10.1016/j.aca.2006.09.035" @default.
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