Spectrofluorimetric determination of trace nitrite with a novel fluorescent probe
文献类型：期刊论文
| 作者 | Liu, Qing-Hao1; Yan, Xi-Long1,2; Guo, Jin-Chun2; Wang, Dong-Hua3; Li, Lei1; Yan, Fan-Yong4; Chen, Li-Gong1 |
| 刊名 | SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
 |
| 出版日期 | 2009-09-01 |
| 卷号 | 73期号:5页码:789-793 |
| 关键词 | Spectrofluorimetric Nitrite Fluorescent Probe Unsymmetrical Rhodamine |
| 文献子类 | Article |
| 英文摘要 | A simple, sensitive and selective fluorimetric determination for trace nitrites was developed using an unsymmetrical rhodamine with a high fluorescence quantum yield and large Stokes shift. The method is based on the reaction of the unsymmetrical rhodamine with nitrite in an acidic medium to form a nitroso product, which has much lower fluorescence because the electron-withdrawing effect of the nitroso group influences the system of p-pi conjugation between N atom and benzene ring. Under optimum conditions, the fluorescence quenching intensity is linear over a nitrite concentration range of 1.0 x 10(-8) to 3.5 x 10(-7) M. The detection limit is 2.0 x 10(-10) M (S/N = 3). The method was applied to the determination of nitrite in tap water and lake water with satisfactory results. The mechanism for the reaction is also reported. (C) 2009 Elsevier B.V. All rights reserved. |
| WOS关键词 | FLUOROMETRIC-DETERMINATION ; WATER SAMPLES ; CAPILLARY-ELECTROPHORESIS ; NITRATE ; ION ; CHROMATOGRAPHY ; REAGENT ; SYSTEM |
| WOS研究方向 | Spectroscopy |
| 语种 | 英语 |
| WOS记录号 | WOS:000268009400001 |
| 源URL | [http://ir.isl.ac.cn/handle/363002/5880]  |
| 专题 | 青海盐湖研究所_青海盐湖研究所知识仓储 中国科学院青海盐湖研究所 |
| 作者单位 | 1.Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China 2.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810008, Peoples R China 3.Tianjin Univ, Sch Pharmaceut & Biotechnol, Tianjin 300072, Peoples R China 4.Tianjin Polytech Univ, Sch Mat Sci & Chem Engn, Tianjin 300160, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Qing-Hao,Yan, Xi-Long,Guo, Jin-Chun,et al. Spectrofluorimetric determination of trace nitrite with a novel fluorescent probe[J]. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,2009,73(5):789-793. |
| APA | Liu, Qing-Hao.,Yan, Xi-Long.,Guo, Jin-Chun.,Wang, Dong-Hua.,Li, Lei.,...&Chen, Li-Gong.(2009).Spectrofluorimetric determination of trace nitrite with a novel fluorescent probe.SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,73(5),789-793. |
| MLA | Liu, Qing-Hao,et al."Spectrofluorimetric determination of trace nitrite with a novel fluorescent probe".SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 73.5(2009):789-793. |
入库方式： OAI收割
来源：青海盐湖研究所
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