| BOD光化学传感敏感膜荧光响应的研究 |
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| 引用本文： | 赵丽,肖来龙,林玲,陈曦,王小如.BOD光化学传感敏感膜荧光响应的研究[J].光谱学与光谱分析,2005,25(12):2039-2043. |
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| 作者姓名： | 赵丽 肖来龙 林玲 陈曦 王小如 |
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| 作者单位： | 1. 厦门大学化学化工学院化学系现代分析科学教育部重点实验室，福建 厦门 361005
2. 厦门大学近海海洋环境科学国家重点实验室，福建 厦门 361005 |
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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和国家“863”计划海洋领域课题（2003AA635100）资助项目 |
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| 摘 要： | 利用自行构建的BOD光纤传感装置对海水中BOD含量进行了检测，考察了海洋耗氧菌种在四甲基硅氧烷(TMOS)、二甲基二甲氧基硅烷(DiMe-DMOS)和聚乙烯醇(PVA)包埋情况下，对BOD的荧光响应行为以及耗氧菌种的加入量对BOD浓度的响应情况。传感膜对5 mg·L-1 BOD溶液测定的相对标准偏差为1.2%(n＝6)，响应时间为3.2 min，敏感膜使用寿命大于12个月。实际海水样品检测表明，利用BOD光纤传感检测的结果与国标BOD5方法，存在较好的一致性。
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| 关 键 词： | 生化需氧量 光纤传感器 溶胶-凝胶 荧光 |
| 文章编号： | 1000-0593(2005)12-2039-05 |
| 收稿时间： | 2005-06-01 |
| 修稿时间： | 2005-09-16 |
Fluorescent Characters of Optical BOD Sensing Film |
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| ZHAO Li,XIAO Lai-long,LIN Ling,CHEN Xi,WANG Xiao-ru.Fluorescent Characters of Optical BOD Sensing Film[J].Spectroscopy and Spectral Analysis,2005,25(12):2039-2043. |
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| Authors: | ZHAO Li XIAO Lai-long LIN Ling CHEN Xi WANG Xiao-ru |
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| Institution: | 1. The Key Laboratory of Analytical Sciences of MOE and Department of Chemistry, Xiamen University, Xiamen 361005, China 2. State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China |
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| Abstract: | We characterized an optical BOD sensing film used to immobilize three kinds of microorganisms from seawater. The sensing film for BOD measurement consists of an optical oxygen sensor and the microorganisms immobilized on poly( vinyl alcohol) ormosils matrix. The fluorescent responses of the BOD sensing film were obviously affected by the thickness of the oxygen film and the concentration of microorganisms in the film. Some other experimental conditions, such as pH, measurement temperature, and the concentration of sodium chloride, were studied. BOD values estimated by this optical BOD sensing film correlate well with those determined by the conventional BOD5 method for seawater samples. |
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| Keywords: | BOD Optical fiber sensor Sol-gel Fluorescence |
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