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论文类型：期刊论文

发表时间：2013-02-07

发表刊物：ANALYTICAL METHODS

收录刊物：SCIE、EI、Scopus

卷号：5

期号：3

页面范围：660-665

ISSN号：1759-9660

摘要：Electrochemiluminescence (ECL) of Ru(bpy)(3)(2+) and bimetallic ruthenium tris-bipyridyl complex [(bpy)(2)Ru(bpy)(CH2)(8)(bpy)Ru(bpy)(2)](4+) (1) at a gold electrode has been employed for the determination of malachite green (MG) in this paper. For Ru(bpy)(3)(2+), a linear response (R-2 = 0.9992) was obtained over a MG concentration range of 1.0 x 10(-8) to 1.0 x 10(-5) M, with a remarkable detection limit of 1.0 x 10(-8) M in a pH 10 borate buffer. The detection limit was further decreased to 1.0 x 10(-12) M for the bimetallic ruthenium complex 1. Meanwhile, leucomalachite green (LMG) was detected and the same detection limit was reached. Which is much lower compared to the other detection methods. To check its applicability, the proposed method was employed in the determination of MG/LMG added into a fishpond water sample, and good reproducibility and stability were achieved. These results show that it will be possible to develop an ECL detection method for MG/LMG.