Simultaneous voltammetric determination of 2-nitrophenol and 4-nitrophenol based on an acetylene black paste electrode modified with a graphene-chitosan composite
National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [21105024]; Science and Technology Department of Hunan Province [2013FJ3078]; Education Department of Hunan Province [11CY002]; Open Fund of Key Laboratory of Functional Organometallic Materials of Ordinary University in Hunan Province [12 K125]; Key Discipline Project of Hunan Province; Research Award Fund for Outstanding Young Teachers of Hunan Province
机构署名：
本校为第一且通讯机构
院系归属：
化学与材料科学学院
摘要：
We describe a simple and sensitive voltammetric method for the simultaneous determination of 2-nitrophenol and 4-nitrophenol. It is based on the use of an acetylene black paste electrode modified with a graphene-chitosan composite film (denoted as Gr-Chit/ABPE). The reduction peak currents of 2-nitrophenol (at -252 mV) and of 4-nitrophenol (at -340 mV) in pH 1.0 solution increase significantly at the Gr-Chit/ABPE in comparison to a bare ABPE. Factors affecting sensitivity were optimized and a linear relationship is found between peak current an...
