کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
745650 | 894426 | 2011 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A dissolved oxygen sensor based on hot electron induced cathodic electrochemiluminescence at a disposable CdS modified screen-printed carbon electrode
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
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چکیده انگلیسی
Hot electron induced cathodic electrochemiluminescence (ECL) was found at a disposable CdS modified screen printed carbon electrodes (CdS-SPCEs) during cathodic pulse polarization. The ECL behavior of the modified electrode was investigated with two emissions located at 520 nm and 580 nm. The CdS-SPCEs show very stable and reproducible ECL signal. The ECL intensity was linear with the dissolved oxygen concentration in the range of 1.7–33 mg/L with a detection limit of 0.02 mg/L (S/N = 3). In addition, a possible mechanism for ECL behavior of the modified electrode was proposed. The developed method can be applied to detect the dissolved oxygen concentration or biochemical oxygen demand (BOD).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 157, Issue 2, 20 October 2011, Pages 488–493
Journal: Sensors and Actuators B: Chemical - Volume 157, Issue 2, 20 October 2011, Pages 488–493
نویسندگان
Rui-Juan Zheng, Yi-Min Fang, Su-Fang Qin, Jing Song, Ai-Hong Wu, Jian-Jun Sun,