| N-(1-萘基)-乙二胺荧光光度法测定痕量亚硝酸根 |
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| 引用本文： | 周运友,佘世科,卢琴,朱昌青,王伦. N-(1-萘基)-乙二胺荧光光度法测定痕量亚硝酸根[J]. 光谱学与光谱分析, 2005, 25(8): 1318-1321 |
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| 作者姓名： | 周运友 佘世科 卢琴 朱昌青 王伦 |
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| 作者单位： | 安徽师范大学化学与材料科学学院，安徽 芜湖 241000 |
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| 基金项目： | 国家自然科学基金(20375001)资助项目 |
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| 摘 要： | 研究了盐酸介质中N-(1-萘基)-乙二胺(NED)与亚硝酸根的反应。基于NED的荧光强度被亚硝酸根猝灭的现象，建立了一种荧光测定NO-2的新方法，并对反应机理进行了讨论。在优化实验条件下，NO-2在1.07～214.0 μg·L-1范围内与NED的荧光猝灭强度呈线性关系，方法的检出限为0.069 μg·L-1。该法用于测定水样中痕量亚硝酸根的含量，结果令人满意。
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| 关 键 词： | N-(1-萘基)-乙二胺 亚硝酸根 荧光猝灭 |
| 文章编号： | 1000-0593(2005)08-1318-04 |
| 收稿时间： | 2004-04-16 |
| 修稿时间： | 2004-08-26 |
Highly Sensitive Spectrofluorimetric Determination of Trace Amounts of Nitrite with N-(1-Naphthyl) Ethylenediamine |
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| ZHOU Yun-you,SHE Shi-ke,LU Qin,ZHU Chang-qing,WANG Lun. Highly Sensitive Spectrofluorimetric Determination of Trace Amounts of Nitrite with N-(1-Naphthyl) Ethylenediamine[J]. Spectroscopy and Spectral Analysis, 2005, 25(8): 1318-1321 |
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| Authors: | ZHOU Yun-you SHE Shi-ke LU Qin ZHU Chang-qing WANG Lun |
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| Affiliation: | ZHOU Yun-you，SHE Shi-ke，LU Qin，ZHU Chang-qing，WANG Lun |
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| Abstract: | A simple and sensitive fluorescence quenching method for the determination of trace nitrite was developed. The method is based on the reaction of NED with nitrite in acidic medium to form a new compound, which has weak fluorescence. The linear range was 1.07-214.0 microg x L(-1) with a 3sigma detection limit of 0.069 microg x L(-1) under the optimum experimental conditions. This proposed method has been applied to the determination of trace amounts of NO2- in tap water and lake water without extraction. |
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| Keywords: | N-(1-naphthyl) ethylenediamine Nitrite Fluorescence quenching |
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