| 荧光猝灭法快速测定环境样品中的邻苯二甲酸二丁酯 |
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| 引用本文： | 刘梦琴,冯泳兰,曾荣英,唐斯萍,黄耿.荧光猝灭法快速测定环境样品中的邻苯二甲酸二丁酯[J].衡阳师专学报,2012(3):71-73. |
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| 作者姓名： | 刘梦琴 冯泳兰 曾荣英 唐斯萍 黄耿 |
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| 作者单位： | [1]衡阳师范学院化学与材料科学系,湖南衡阳421008 [2]功能金属有机材料湖南省重点实验室,湖南衡阳421008 |
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| 基金项目： | 湖南省科技厅计划项目（2011FJ3134）;湖南省高校创新平台开放基金项目的资助（09K099）;湖南省青年骨干教师课题;湖南省十一五教育科学规划课题（XJK011CGD033） |
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| 摘 要： | 用荧光光谱法研究了邻苯二甲酸二丁酯（DBP）与荧光素（HFIn）的荧光性质,建立了一种简单、快速、灵敏测定邻苯二甲酸二丁酯的新方法。结果表明：在pH=6.0的NaAc-HAc缓冲溶液中,加入邻苯二甲酸二丁酯使荧光素的荧光猝灭,体系的激发波长和发射波长分别为487nm和532nm。HFIn的荧光强度差值与DBP的含量在0.2～8.0mg/L范围内呈良好线性关系,检出限为0.092mg/L。应用于水样和一次性塑料袋中痕量邻苯二甲酸二丁酯的测定,结果满意,并进行了加标回收实验。
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| 关 键 词： | 荧光素 邻苯二甲酸二丁酯 荧光猝灭法 |
Fast Determination of Dibutyl Phthalate in Environmental Samples by Fluorescence Quenching Method |
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| LIU Meng-qin,FENG Yong-lan,ZENG Rong-ying,TANG Si-ping,HUANG Geng.Fast Determination of Dibutyl Phthalate in Environmental Samples by Fluorescence Quenching Method[J].Journal of Hengyang Normal University,2012(3):71-73. |
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| Authors: | LIU Meng-qin FENG Yong-lan ZENG Rong-ying TANG Si-ping HUANG Geng |
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| Institution: | 1. Department of Chemistry and Materials Science, Hengyang Normal University, Hengyang Hunan 421008, China ; 2. Key laboratory of functional organometallic materials of Hengyang Normal University, Hengyang Hunan 421008,China) |
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| Abstract: | A direct fluorescent photometric method is discussed for the determination of dibutyl phthalate （DBP） based on the fluorometric quenching effect of fluorescein （HFIn）. The results indicate that in the buffer solution of NaAc-HAc at pH 6.00, the HFIn-DBP fluorescent complex has maximum excitation at 487 nm, and maximum emission at 532 nm,and the fluorescence intensity is proportional to the amount of DBP in the range of 0.2-8.0 mg/L, with detection limits of 0. 092 mg/L. The pro- posed method has also been applied to the determination of DBP in environmental samples with satisfactory results. |
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| Keywords: | Fluorescein （HFIn） Dibutyl Phthalate （DBP） Fluorescence Quenching Method |
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