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Citation: HUANG Feng-Hua, ZHUANG Hui-Sheng, CHEN Guo-Nan. Electrochemiluminescent Behavior of 10,10'-dimethyl-3,3'-disulfo-9,9'-biacridine[J]. Acta Physico-Chimica Sinica, ;2007, 23(10): 1589-1593. doi: 10.3866/PKU.WHXB20071018 shu

Electrochemiluminescent Behavior of 10,10'-dimethyl-3,3'-disulfo-9,9'-biacridine

1.
Ministry of Education Key Laboratory of Analysis and Detection Technology for Food Safety, Fuzhou University, Fuzhou 350002, P. R. China; College of Chemistry and Material Science, Fujian Normal University, Fuzhou 350007, P. R. China; College of Environment Science and Engineering, Donghua University, Shanghai 200051, P. R. China

Received Date: 14 March 2007
Available Online: 3 September 2007

The electrochemiluminescence (ECL) behaviour of a new reagent 10,10'-dimethyl-3,3'-disulfo-9,9'-biacridine (DMDSBA) was studied. The effects of the electrochemical parameters, the reaction medium and pH on the ECL were investigated in detail. It was found that the new reagent DMDSBA gave a strong electrochemiluminescence in KNO₃ solution when an appropriate voltage was applied on glassy carbon electrode. Under the optimum conditions, the natural logarithm of the ECL intensity of DMDSBA has a od linear relationship with the natural logarithm of the concentration of DMDSBA in the range of 1.0×10^-5 -1.0×10^-8 mol·L^-1, the detection limit of DMDSBA was 2.3×10^-9 mol·L ^-1. The cyclic voltammetry, fluorescence spetrum and ECL spetrum for this ECL system have also been investigated in detail, based on which a possible mechanismfor the ECL of DMDSBA was proposed.
- DMDSBA; Electrochemiluminescence; Mechanism
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