Amperometric Determination of Sulfide by Glassy Carbon Electrode Modified with Hemin Functionalized Reduced Graphene Oxide. Issue 1 (28th September 2015)

• Record Type: Journal Article
• Authors: Cao, Xiaodong; Gao, Jiaona; Ye, Yingwang; Wang, Pengfei; Ding, Shun; Ye, Yongkang; Sun, Hanju
• Is Part Of: Electroanalysis. Volume 28:Issue 1(2016)
• Page Start: 140
• Page End: 144
• Publication Date: 2015-09-28
• Subjects: Sulfide -- Hemin functionalized reduced graphene oxide -- Modified glassy carbon electrode -- Amperometric determination; Electrochemical analysis -- Periodicals; Chemistry, Analytical -- Periodicals; Electrochemistry -- Periodicals; 543.4
• DOI: 10.1002/elan.201500508
• Languages: English
• ISSNs: 1040-0397

Abstract

Abstract: This work describes a new approach for rapid detection of sulfide using a glassy carbon electrode (GCE) modified with hemin functionalized reduced graphene oxide (hemin‐rGO). The modified GCE was applied to the selective amperometric detection of sulfide at a working potential of 0.05 V (vs. Ag/AgCl) at pH 7.5, which gave a linear range of 0.002–0.212 mM, a sensitivity of 246.5 µA mM −1 cm −2, and a detection limit of 1.3 µM. The proposed method was applied in determination of sulfide‐spiked water, and the method was verified with recovery percentage of standard samples with an acceptable satisfaction. Abstract :