| 四环素-Ca2+-CTMAB三元配合物体系荧光光谱的研究与应用 |
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| 引用本文： | 张红漫,顾铭燕,黄金恋,高旭升.四环素-Ca2+-CTMAB三元配合物体系荧光光谱的研究与应用[J].分析试验室,2009,28(7). |
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| 作者姓名： | 张红漫 顾铭燕 黄金恋 高旭升 |
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| 作者单位： | 南京工业大学应用化学系,南京,210009 |
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| 基金项目： | 国家自然科学基金，国家高技术研究发展计划(863计划) |
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| 摘 要： | 研究了Ca2+和阳离子表面活性剂CTMAB对四环素(TC)的荧光增敏作用,提出了一种利用Ca2+-TC-CTMAB三元配合物协同增敏体系来测定TC含量的新方法.在Ca2+-CTMAB及TC共存体系中,由于三元配合物的生成使TC的荧光强度急剧增加,其荧光强度与TC浓度在8.0×109-9～1.0×10-5 mol/L范围内具有良好的线性关系,方法检出限为5.97×10-9 mol/L.该法用于TC片剂、尿液及牛奶中残留TC的测定,加标回收率为82.4%～98.3%.同时对TC在不同介质中的荧光增敏作用机理进行了初步探讨.
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| 关 键 词： | 四环素 三元配合物体系 荧光法 |
Investigation on fluorescent spectrum of ternary complex of tetracycline Ca2+ -CTMAB and its application |
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| ZHANG Hong-man,GU Ming-yan,HUANG Jin-lian,GAO Xu-sheng.Investigation on fluorescent spectrum of ternary complex of tetracycline Ca2+ -CTMAB and its application[J].Chinese Journal of Analysis Laboratory,2009,28(7). |
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| Authors: | ZHANG Hong-man GU Ming-yan HUANG Jin-lian GAO Xu-sheng |
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| Institution: | Department of Applied Chemistry;Nanjing University of Technology;Nanjing 210009 |
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| Abstract: | The effects of Ca2+ and cationic surfactant CTMAB on tetracycline(TC) fluorescence enhancement had been investigated.A novel fluorescent method for the determination of TC had been developed on the basis of the synergistic fluorescence enhancement effects of the ternary complex system of Ca2+-TC-CTMAB.In the coexistent system of TC,Ca2+ and CTMAB,the observed fluorescent intensity of TC dramatically increased for the formation of ternary complex,and a linear dependence of fluorescent intensity on TC concent... |
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| Keywords: | Ca2+ ClMAB |
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