| 氧对钌(Ⅱ)配合物溶胶-凝胶膜荧光响应的影响 |
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| 引用本文： | 蒋亚琪,钟振明,陈曦,王小如,WONG Kwokyin.氧对钌(Ⅱ)配合物溶胶-凝胶膜荧光响应的影响[J].光谱学与光谱分析,2004,24(7):844-847. |
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| 作者姓名： | 蒋亚琪 钟振明 陈曦 王小如 WONG Kwokyin |
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| 作者单位： | 厦门大学化学化工学院,现代分析科学教育部重点实验室,福建,厦门,361005;香港理工大学应用生物与化学科技系,香港,九龙 |
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| 基金项目： | 国家自然科学基金委员会与香港研究资助局联合科研基金，国家“863”计划海洋领域 (2 0 0 1AA6351 0 0 )课题资助项目 |
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| 摘 要： | 利用蓝光LED(λmax =4 6 0nm )构建的氧荧光猝灭检测系统 ,考察了不同Ru配合物以甲基硅氧烷(TMOS)和二甲基二甲氧基硅烷 (DiMe DMOS)为共先驱体 ,制备的有机改性溶胶 凝胶 (sol gel)膜内荧光猝灭行为。DiMe DMOS的加入量会影响敏感膜的极性 ,从而影响敏感膜对氧浓度的响应。利用自行构建的装置对水体中氧进行了检测 ,传感膜对氧饱和水溶液测定的相对标准偏差为 1 12 % (n =6 ) ,响应时间为 30s,对氮饱和水溶液测定相对标准偏差为 0 39% (n =6 ) ,响应时间为 90s,敏感膜使用寿命大于 6个月。
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| 关 键 词： | 钌配合物 溶胶-凝胶 荧光 氧传感器 |
| 文章编号： | 1000-0593(2004)07-0844-04 |
| 修稿时间： | 2002年9月30日 |
Effect of Oxygen on the Fluorescence of Sol-Gel with Ruthenium Complexes |
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| Ya-qi Jiang,Zhen-Ming Zhong,Xi Chen,Xiao-u Wang,Kwokyin Wong.Effect of Oxygen on the Fluorescence of Sol-Gel with Ruthenium Complexes[J].Spectroscopy and Spectral Analysis,2004,24(7):844-847. |
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| Authors: | Ya-qi Jiang Zhen-Ming Zhong Xi Chen Xiao-u Wang Kwokyin Wong |
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| Institution: | The Key Laboratory of Analytical Sciences of MOE and Department of Chemistry, Xiamen University, Xiamen 361005, China. |
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| Abstract: | Different Ru complexes were used in an organically modified sol-gel (ormosil) sensing film to character their quenching behaviors to oxygen. The sensing film with tris-(4,7-diphenyl-1, 10-phenanthroline) ruthenium(II) Ru(dpp)(2+)3] as an indicator was selected because of its characteristics with high quenching efficiency, fast response time, high luminescence intensity and long-term stability. The quenching behavior of the sensing film greatly depended on the content of dimethyldimethoxysilane (DiMe-DMOS) in ormosil because DiMe-DMOS changed the polarity of sensing film. A home-made fluorescence quenching system was set up for oxygen determination based on a blue LED (lambda max = 460 nm ) as an exciting light source. Th e response time was 30 s from saturatednitrogen to oxygen in water, and 90 s from saturated oxygen to nitrogen. |
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| Keywords: | Ruthenium complex Sol-gel Fluorescence Oxygen sensor |
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