Flow Injection Small-volume Fiber-optic pH Sensor Based on Evanescent Wave Excitation and Fluorescence Determination

	Flow Injection Small-volume Fiber-optic pH Sensor Based on Evanescent Wave Excitation and Fluorescence Determination
	Xiong, Yan 2,3; Huang, Ying 2; Ye, Zhongbin 2,3; Guan, Yafeng 1
刊名	journal of fluorescence
	2011-05-01
卷号	21 期号:3 页码:1137-1142
关键词	Fiber-optic sensor Evanescent wave excitation Small-volume Flow injection Fluorescence determination
ISSN号	待补充
通讯作者	关亚风
产权排序	2,4
中文摘要	flow injection small-volume fiber-optic ph sensor based on evanescent wave excitation and fluorescence determination
英文摘要	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.
学科主题	物理化学
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
关键词[WOS]	system ; spectroscopy ; polyaniline ; copolymer ; acidity
收录类别	SCI
语种	英语
WOS记录号	WOS:000291999400040
公开日期	2012-07-09
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/115452]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.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
推荐引用方式 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.(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.