| Fabrication of organically modified oxygen sensing film based on fluorescent quenching |
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| 作者姓名： | XIN LingLing XIAO LaiLong ZHAO Li CHEN Xi WANG XiaoRu |
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| 作者单位： | [1]Department of Chemistry and the Key Laboratory of Analytical Sciences of Ministry of Education, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China [2]State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China |
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| 基金项目： | Supported by the Natural High Technical Development Project （863 project） Foundation （Grant No. 200516）, the Program for New Century Excellent Talents in University of China （NCET） and the Natural Scientific Foundation of Fujian （Grant No. D0410001）. We also express our sincere thanks to Professor Yang Xiaoqing, College of Foreign Languages and Cultures, Xiamen University, for her kind revision. |
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| 摘 要： | An organically modified silicate (ORMOSIL) as a matrix for oxygen-sensitive sensor, in which di-methyldimethoxysilane was selected as an organic modifier in the precursor, is described. The sensing film with tris-(4,7-diphenyl-1,10-phenanthroline) ruthenium(II) as an indicator developed in this paper was characterized by efficient quenching by oxygen. Blue light-emitting diodes (λmax = 475 nm) were employed as light excitation source. The linear range of the dissolved oxygen was from 0.5 to 16 μg/mL. The measured RSD was 2%, the response time (t95) was 60 s, and the determination limit was 0.2 μg/mL. A portable and inexpensive luminescence-based sensor was established and applied to the determina-tion of dissolved oxygen in the surface water.
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| 关 键 词： | 改性有机硅 钌 邻二氮杂菲 发光 |
| 收稿时间： | 20 June 2006 |
| 修稿时间： | 2006-06-202006-09-01 |
Fabrication of organically modified oxygen sensing film based on fluorescent quenching |
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| XIN LingLing XIAO LaiLong ZHAO Li CHEN Xi WANG XiaoRu.Fabrication of organically modified oxygen sensing film based on fluorescent quenching[J].Chinese Science Bulletin,2007,52(2):188-193. |
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| Authors: | Xin LingLing Xiao LaiLong Zhao Li Chen Xi Wang XiaoRu |
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| Institution: | (1) Department of Chemistry and the Key Laboratory of Analytical Sciences of Ministry of Education, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China;(2) State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, 361005, China |
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| Abstract: | An organically modified silicate (ORMOSIL) as a matrix for oxygen-sensitive sensor, in which dimethyldimethoxysilane was selected
as an organic modifier in the precursor, is described. The sensing film with tris-(4,7-diphenyl-1,10-phenanthroline) ruthenium(II)
as an indicator developed in this paper was characterized by efficient quenching by oxygen. Blue light-emitting diodes (λ
max = 475 nm) were employed as light excitation source. The linear range of the dissolved oxygen was from 0.5 to 16 μg/mL. The
measured RSD was 2%, the response time (t
95) was 60 s, and the determination limit was 0.2 μg/mL. A portable and inexpensive luminescence-based sensor was established
and applied to the determination of dissolved oxygen in the surface water.
Supported by the Natural High Technical Development Project (863 project) Foundation (Grant No. 200516), the Program for New
Century Excellent Talents in University of China (NCET) and the Natural Scientific Foundation of Fujian (Grant No. D0410001) |
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| Keywords: | ORMOSIL fluorescent quenching oxygen sensing film ruthenium complex |
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