Determination of malachite green and leucomalachite green based on electrochemiluminescence of Ru(bpy)32+ at graphene oxide modified glassy carbon electrodes. Issue 19 (30th January 2015)

• Record Type: Journal Article
• Authors: Shao, Jiantao; Zhao, Yunmeng; Liu, Fengyu; Li, Wei; Gao, Yulong
• Is Part Of: RSC advances. Volume 5:Issue 19(2015)
• Page Start: 14547
• Page End: 14552
• Publication Date: 2015-01-30
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c4ra09915j
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : An electrochemiluminescence (ECL) method for the determination of malachite green (MG) and leucomalachite green (LMG) has been established based on ECL of Ru(bpy)3 2+ at the GO-modified GCE. Abstract : The graphene oxide (GO) modified glassy carbon (GC) electrode has been employed for the determination of malachite green (MG) and leucomalachite green (LMG) based on the electrochemiluminescence (ECL) of Ru(bpy)3 2+ . It gave a linear response over a concentration range of 1.0 × 10 −16 to 1.0 × 10 −12 mol L −1 for both MG and LMG. A remarkable detection limit of 1.0 × 10 −16 mol L −1 can be reached for MG and LMG in 0.1 mol L −1 phosphate buffer (pH = 10), which is much lower compared to the other detection methods. To check its applicability, the proposed method was employed for the determination of MG and LMG spiked into pond water, giving a good reproducibility and stability. All these results show that it will be possible to develop an ECL detection procedure for MG/LMG at GO-modified GC electrodes.