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题名: A fiber-optic evanescent wave sensor for dissolved oxygen detection based on novel hybrid fluorinated xerogels immobilized with [Ru(bpy)(3)](2+)
作者: Xiong, Yan1;  Xu, Jing1;  Wang, Jian-Wei1;  Guan, Ya-Feng1
关键词: Fiber-optic ;  Evanescent wave sensor ;  Dissolved oxygen ;  Hybrid ORMOSILs materials ;  [Ru(bpy)(3)](2+)
刊名: ANALYTICAL AND BIOANALYTICAL CHEMISTRY
发表日期: 2009-06-01
DOI: 10.1007/s00216-009-2746-4
卷: 394, 期:3, 页:919-923
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Life Sciences & Biomedicine ;  Physical Sciences
类目[WOS]: Biochemical Research Methods ;  Chemistry, Analytical
研究领域[WOS]: Biochemistry & Molecular Biology ;  Chemistry
英文摘要: We have prepared a novel fiber-optic evanescent wave sensor (FEWS) for dissolved oxygen (DO) detection. The sensor fabrication was based on coating a decladded portion of an optical fiber with a microporous coating, which was prepared from 3,3,3-trifluoropropyltrimethoxy-silane and n-propyltrimethoxysilane. The fluorophores were immobilized in the porous coating and excited by the evanescent wave field produced on the core surface of the optical fiber. The sensitivity of the sensor was quantified by the ratio of the fluorescence intensities in pure deoxygenated (I-0) and in pure oxygenated environments (I). Results show that the quenching response of DO is increased with the enhancement of the coating surface hydrophobicity using the presented hybrid fluorinated ORMOSILs. The calibration curve of I-0/I to [O-2] is linear from 0 to 40 ppm and the detection limit is 0.05 ppm (3 sigma) with a short response time of 15 s for DO detection.
关键词[WOS]: COMPLEXES ;  FILMS ;  SENSITIVITY ;  SYSTEM ;  PHASE
语种: 英语
WOS记录号: WOS:000265786900029
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141336
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dept Instrumentat & Analyt Chem, Dalian 116023, Peoples R China

Recommended Citation:
Xiong, Yan,Xu, Jing,Wang, Jian-Wei,et al. A fiber-optic evanescent wave sensor for dissolved oxygen detection based on novel hybrid fluorinated xerogels immobilized with [Ru(bpy)(3)](2+)[J]. ANALYTICAL AND BIOANALYTICAL CHEMISTRY,2009,394(3):919-923.
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