| A Rhodamine-Based Sensor-for Chromogenic Detection of Cu^2＋ and Fluorescent Detection of Fe^3＋ |
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| 作者姓名： | YU Xianglin QU Hao HU Qihui HOU Kun YAN Yushi WU Dan ZHANG Pian LI Junbo |
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| 作者单位： | Key Laboratory for Green Chemical Process of Ministry ofEducation, Wuhan Institute of Technology, Wuhan 430073, Hubei,China |
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| 基金项目： | Supported by National Natural Science Foundation of China （20901063, 51203127）, Wuban Chenguang Scheme （Grant 201050231049） established under Wuhan Science and Technology Bureau, Outstanding youth project of Hubei Provincial Department of Education （20121509）. |
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| 摘 要： | A rhodamine-benzimidazole conjugate(RB) as a probe was investigated.UV-Vis analysis showed that a strong absorption band at 552 nm was formed with the addition of Cu~(2+),while other transition metal ions induced a little more absorption.The absorption value of RB solution at 552 nm has a linear correlation with Cu~(2+) concentration between 35-70 μmol/L;the detection limit reached 6.82×10~(-2) μmol/L,which is lower than the settled limitation for copper in the drinking water(~30 μmol/L) standardized by World Health Organization(WHO).Moreover,FL analysis showed that only Fe~(3+) could induce large fluorescence intensity enhancement at 582 nm;other common metal ions including Cu~(2+) cannot induce the enhancement.There was a good linear correlation between relative fluorescence intensity and Fe~(3+) concentration ranging from 2 μmol/L to 20 μmol/L,and the detection limit reached1.70×10~(-2) μmol/L.The results showed that RB could detect Cu~(2+)and Fe~(3+) simultaneously,with the UV-Vis and fluorescence spectroscopy,respectively.
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| 关 键 词： | 荧光检测 Fe 传感器 过渡金属离子 可见分光光度计 线性相关性 铜 明基 |
A rhodamine-based sensor for chromogenic detection of Cu2+ and fluorescent detection of Fe3+ |
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| YU Xianglin,QU Hao,HU Qihui,HOU Kun,YAN Yushi,WU Dan,ZHANG Pian,LI Junbo.A rhodamine-based sensor for chromogenic detection of Cu2+ and fluorescent detection of Fe3+[J].Wuhan University Journal of Natural Sciences,2014,19(2):129-136. |
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| Authors: | Xianglin Yu Hao Qu Qihui Hu Kun Hou Yushi Yan Dan Wu Pian Zhang Junbo Li |
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| Institution: | 1. Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan Institute of Technology, Wuhan, 430073, Hubei, China
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| Abstract: | rhodamine B sensor multiple analytes copper ions iron ions |
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| Keywords: | rhodamine B sensor multiple analytes copper ions iron ions |
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