Premium
Amperometric Determination of Sulfide by Glassy Carbon Electrode Modified with Hemin Functionalized Reduced Graphene Oxide
Author(s) -
Cao Xiaodong,
Gao Jiaona,
Ye Yingwang,
Wang Pengfei,
Ding Shun,
Ye Yongkang,
Sun Hanju
Publication year - 2016
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201500508
Subject(s) - graphene , amperometry , hemin , detection limit , sulfide , oxide , inorganic chemistry , linear range , electrode , materials science , glassy carbon , carbon fibers , electrochemistry , chemistry , nuclear chemistry , chromatography , nanotechnology , composite number , cyclic voltammetry , organic chemistry , metallurgy , heme , composite material , enzyme
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.