Sensitive Electrochemical Detection of 2,4-Dichlorophenol Using Novel Carbon Fiber Microelectrode

A novel electrochemical strategy was proposed for detection of 2,4-Dichlorophenol (2,4-DCP) at fabricated carbon fiber microelectrode (CFME). The resultant CFME was characterized using scan electron microscopy (SEM) and cyclic voltammetry (CV). Upon addition of surfactant TritonX-100 in analytical system, the electrochemical signal of 2,4-DCP was obviously increased. Under the optimized conditions, the resulted CFME showed wide linear range for 2,4-DCP from 3.0x10(-8) to 1.8x10(-6) M with the detection limit of 1.0x10(-8) M (SIN = 3). The proposed method is simple, low-cost and convenient and will be a promising alternative for CFME fabrication.