A novel fiber optic sensor based on optical composite oxygen-sensitive film was developed for determination of 2,4-dichlorophenol(DCP).The optical composite oxygen-sensitive film consists of tris(2,2’-bipyridyl)dichl...A novel fiber optic sensor based on optical composite oxygen-sensitive film was developed for determination of 2,4-dichlorophenol(DCP).The optical composite oxygen-sensitive film consists of tris(2,2’-bipyridyl)dichloro ruthenium(II)hexahydrate(Ru(bpy)3Cl2)as the fluorescence indicator and iron(III)tetrasulfophthalocyanine(Fe(III)PcTs)as bionic enzyme.A lock-in amplifier was used for detecting the lifetime of the composite oxygen-sensitive film by measuring the phase delay of the sensor head.The different variables affecting the sensor performance were evaluated and optimized.Under the optimal conditions(i e,pH 6.0,25℃,Fe(III)PcTs concentration of 5.0×10^-5 mol/L),the linear detection range,detection limit and response time of the fiber optic sensor are 3.0×10^-7-9.0×10^-5 mol/L,4.8×10^-8 mol/L(S/N=3),and 220 s,respectively.The sensor displays high selectivity,good repeatability and stability,which have good potentials in analyzing DCP concentration in practical water samples.展开更多
光纤复合相导线(Optical Phase Conductor,OPPC)在电网节能和抗冰灾方面有其优越性,但传统的OPPC技术繁琐复杂,给施工带来了不便。广东电网公司于2009年开发了新型OPPC光单元分离引下技术,并在10 k V配电线路中投入应用,适合110 k V架...光纤复合相导线(Optical Phase Conductor,OPPC)在电网节能和抗冰灾方面有其优越性,但传统的OPPC技术繁琐复杂,给施工带来了不便。广东电网公司于2009年开发了新型OPPC光单元分离引下技术,并在10 k V配电线路中投入应用,适合110 k V架空输电线路的全绝缘光单元OPPC技术也已于近期开发成功,文章对110 k V线路OPPC全绝缘光单元直接引下试验及其应用进行了介绍。在此背景下,OPPC架空送电线路建设可望摆脱繁琐的传统技术,为电力通信光纤线路建设提供一种较好的选择。展开更多
基金Funded by the National Natural Science Foundation of China(No.61205062)the Scientific Research Foundation for Doctor of University(No.2019Y02)。
文摘A novel fiber optic sensor based on optical composite oxygen-sensitive film was developed for determination of 2,4-dichlorophenol(DCP).The optical composite oxygen-sensitive film consists of tris(2,2’-bipyridyl)dichloro ruthenium(II)hexahydrate(Ru(bpy)3Cl2)as the fluorescence indicator and iron(III)tetrasulfophthalocyanine(Fe(III)PcTs)as bionic enzyme.A lock-in amplifier was used for detecting the lifetime of the composite oxygen-sensitive film by measuring the phase delay of the sensor head.The different variables affecting the sensor performance were evaluated and optimized.Under the optimal conditions(i e,pH 6.0,25℃,Fe(III)PcTs concentration of 5.0×10^-5 mol/L),the linear detection range,detection limit and response time of the fiber optic sensor are 3.0×10^-7-9.0×10^-5 mol/L,4.8×10^-8 mol/L(S/N=3),and 220 s,respectively.The sensor displays high selectivity,good repeatability and stability,which have good potentials in analyzing DCP concentration in practical water samples.
文摘光纤复合相导线(Optical Phase Conductor,OPPC)在电网节能和抗冰灾方面有其优越性,但传统的OPPC技术繁琐复杂,给施工带来了不便。广东电网公司于2009年开发了新型OPPC光单元分离引下技术,并在10 k V配电线路中投入应用,适合110 k V架空输电线路的全绝缘光单元OPPC技术也已于近期开发成功,文章对110 k V线路OPPC全绝缘光单元直接引下试验及其应用进行了介绍。在此背景下,OPPC架空送电线路建设可望摆脱繁琐的传统技术,为电力通信光纤线路建设提供一种较好的选择。
