| 甲酸存在下 N-四氢苯并噻唑亚胺希夫碱的化学发光 |
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| 引用本文： | 张四纯,李华,武亚艳. 甲酸存在下 N-四氢苯并噻唑亚胺希夫碱的化学发光[J]. 分析化学, 2001, 29(2): 150-153 |
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| 作者姓名： | 张四纯 李华 武亚艳 |
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| 作者单位： | 1. 西北大学分析科学研究所,
2. 西安交通大学工程学院分离科学研究所, |
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| 基金项目： | 国家自然科学基金，20075021， |
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| 摘 要： | 新合成的N(2-四氢苯并噻唑)-2-羟基苯甲亚胺希夫碱与酸性高锰酸钾反应产生微弱的化学发光，甲酸的存在有显著的增敏作用。报道了其荧光光谱、化学发光光谱、紫外可见吸收光谱和化学发光动力学曲线，并建立了流动注射化学发光测定噻唑类希夫碱的方法。该法线性范围为1.0×10-7～8.0×10-5mol/L,检测限为5.0×10-8mol/L,对1.0×10-6mol/L噻唑类希夫碱11次平行测定的相对标准偏差为1.7％。
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| 关 键 词： | 化学发光 甲酸 高锰酸钾 N－四氢苯并噻唑亚胺希夫碱 流动注射分析 测定方法 |
Chemiluminescence of N-tetrahydrobenzothiazolyl Imine in the Presence of Formic Acid |
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| Zhang Sichun,Li Hua,Wu Yayan. Chemiluminescence of N-tetrahydrobenzothiazolyl Imine in the Presence of Formic Acid[J]. Chinese Journal of Analytical Chemistry, 2001, 29(2): 150-153 |
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| Authors: | Zhang Sichun Li Hua Wu Yayan |
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| Abstract: | The chemiluminescence (CL) reaction was observed from the synthesized N-tetrahydrobenzothiazolyl imines mixed with acidified potassium permanganate and the emission intensity was significantly enhanced, when the formic acid was added. The fluorescence spectra, CL spectra, UV-VIS absorption spectra and kinetic property of the reaction were investigated. Based on the CL reaction, a flow injection method for the determination of Ntetrahydrobenzothiazolyl imine was developed. The relative standard deviation for eleven replicate injections of 1.0× 10-6 mol/L schiff bases of N-tetrahydrobenzothiazolyl imine was 1.7%, and the detection limit (3σ) was 5.0 ×10-8 mol/L. Mn2+ ,Fe3+ ,Cu2+ ,Ni2+ ,Cr3+ ,Mg2+ ,Zn2+ ,Tl+ ,Bi2+ and Al3+ ions had no effect whilst Ag+ and Fe2+ ions interfered with the determination. |
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| Keywords: | Chemiluminescence formic acid potassium permanganate N-tetrahydrobmenzothiazolyl imines flow injection analysis |
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