A Fiber Optic Sensor for Determination of 2,4-dichlorophenol based on Iron(II) Phthalocyanine Catalysis

作者：Wang Yonghong; Tong Yilin; Huang Jun^*; Li Kun; Liu Huichao; Ding Liyun; Li Mingtian

来源：Journal of Wuhan University of Technology-Materials Science Edition, 2015, 30(6): 1317-1320.

DOI：10.1007/s11595-015-1314-3

• 2,4-dichlorophenol
• iron(II) phthalocyanine
• phase delay change
• fiber optic sensor
• stability

A new fiber optic sensor based on the oxidation of 2,4-dichlorophenol (DCP) catalyzed by iron(II) phthalocyanine (Fe(II)Pc) was developed for the determination of DCP. The optical oxygen sensing film containing fluorescence indicator Ru(bpy)(3)Cl-2 was used to detect the consumption of oxygen in solution. Moreover, a lock-in amplifier was used to determine the lifetime of the sensor head by detecting its phase delay change. The results reveal that the sensor has a linear detection range of 1.0 x 10(-6) - 9.0x10(-5) mol/L and a response time of 5 min. The sensor also has high selectivity, good repeatability and stability. It can be used effectively to determine DCP concentration in real samples.

• 出版日期2015-12
• 单位四川轻化工大学; 武汉理工大学