DICP OpenIR
Subject Area物理化学
Flow Injection Small-volume Fiber-optic pH Sensor Based on Evanescent Wave Excitation and Fluorescence Determination
Xiong, Yan2,3; Huang, Ying2; Ye, Zhongbin2,3; Guan, Yafeng1; Guan YF(关亚风)
KeywordFiber-optic Sensor Evanescent Wave Excitation Small-volume Flow Injection Fluorescence Determination
Source PublicationJOURNAL OF FLUORESCENCE
2011-05-01
ISSN待补充
DOI10.1007/s10895-010-0790-2
Volume21Issue:3Pages:1137-1142
Indexed BySCI
SubtypeArticle
Department1
Funding Project105
Contribution Rank2,4
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
WOS SubjectBiochemical Research Methods ; Chemistry, Analytical
WOS Research AreaBiochemistry & Molecular Biology ; Chemistry
WOS KeywordSYSTEM ; SPECTROSCOPY ; POLYANILINE ; COPOLYMER ; ACIDITY
AbstractFlow Injection Small-volume Fiber-optic pH Sensor Based on Evanescent Wave Excitation and Fluorescence Determination; A small-volume fiber-optic pH sensor (FOEWS) based on evanescent wave excitation is developed and evaluated. The sensor is simply fabricated by inserting a decladded optical fiber into a transparent capillary tube. A microchannel between the optical fiber and the capillary inner wall was formed and acted as flow cell for solution flowing through. The pH-sensitive fluorophore of fluorescein can be excited by the evanescent wave field produced on the fiber core surface to produce emission fluorescence. pH value was then sensed by its enhancing effect on the emission fluorescence intensity. The response range of the sensor is from pH 2.09 to pH 8.85 and the linear range is from pH 3.25 to 8.85. The proposed sensor has a small detection volume of 2.5 mu L and a short response time of 8 s. It has been applied to measure pH values of real water samples and was in good agreement with the results obtained by commercial pH meter.
Language英语
WOS IDWOS:000291999400040
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/115452
Collection中国科学院大连化学物理研究所
Corresponding AuthorGuan YF(关亚风)
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Dept Instrumentat & Analyt Chem, Dalian 116023, Peoples R China
2.SW Petr Univ, Sch Chem & Chem Engn, Chengdu 610500, Peoples R China
3.SW Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610500, Peoples R China
Recommended Citation
GB/T 7714
Xiong, Yan,Huang, Ying,Ye, Zhongbin,et al. Flow Injection Small-volume Fiber-optic pH Sensor Based on Evanescent Wave Excitation and Fluorescence Determination[J]. JOURNAL OF FLUORESCENCE,2011,21(3):1137-1142.
APA Xiong, Yan,Huang, Ying,Ye, Zhongbin,Guan, Yafeng,&关亚风.(2011).Flow Injection Small-volume Fiber-optic pH Sensor Based on Evanescent Wave Excitation and Fluorescence Determination.JOURNAL OF FLUORESCENCE,21(3),1137-1142.
MLA Xiong, Yan,et al."Flow Injection Small-volume Fiber-optic pH Sensor Based on Evanescent Wave Excitation and Fluorescence Determination".JOURNAL OF FLUORESCENCE 21.3(2011):1137-1142.
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