| 巯基乙胺稳定的CdTe量子点荧光猝灭法测定间苯二酚 |
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| 引用本文： | 陈志兵,刘夏,胡丽萍,杨茂义,张洋,李梦瑶. 巯基乙胺稳定的CdTe量子点荧光猝灭法测定间苯二酚[J]. 光谱实验室, 2011, 28(3): 1556-1559 |
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| 作者姓名： | 陈志兵 刘夏 胡丽萍 杨茂义 张洋 李梦瑶 |
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| 作者单位： | 1. 自旋电子与纳米材料安徽省重点实验室培育基地,安徽省宿州市汴河路71号,234000;宿州学院化学与生命科学学院,安徽省宿州市汴河路71号,234000
2. 宿州学院化学与生命科学学院,安徽省宿州市汴河路71号,234000 |
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| 基金项目： | 国家自然科学基金，安徽省教育厅重大项目，安徽省优秀青年人才基金，宿州学院科研平台开放课题，大学生科研项目 |
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| 摘 要： | 以CdTe量子点作为荧光探针,基于荧光猝灭法对间苯二酚进行了定量检测,考察了缓冲溶液体系、量子点浓度、反应时间等多种因素的影响.实验结果表明,在pH 6.5的0.2mol/LNa<,2>HPO<,2>-NaH<,2>PO<,4>缓冲液中,反应时间为15min.间苯二酚浓度为1.6×10<'-6>-2.0×10<'-5>...
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| 关 键 词： | CdTe量子点 巯基乙胺 间苯二酚 荧光猝灭 |
Determination of Resorcinol Based on Fluorescence Quenching of CdTe Quantum Dots by Cysteamine |
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| CHEN Zhi-Binga,b LIU Xiab HU Li-Pingb YANG Mao-Yib ZHANG Yangb LI Meng-Yao. Determination of Resorcinol Based on Fluorescence Quenching of CdTe Quantum Dots by Cysteamine[J]. Chinese Journal of Spectroscopy Laboratory, 2011, 28(3): 1556-1559 |
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| Authors: | CHEN Zhi-Binga b LIU Xiab HU Li-Pingb YANG Mao-Yib ZHANG Yangb LI Meng-Yao |
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| Affiliation: | ba[Anhui Key Laboratory of Spin Electron and Nanomaterials(Cultivating Base),Suzhou,Anhui 234000,P.R.China]b(Department of Chemistry ＆ Biology,Suzhou College,Suzhou,Anhui 234000,P.R.China) |
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| Abstract: | Resorcinol was quantitatively detected based on its fluorescence（FL） quenching,with CdTe quantum dots（QDs） as fluorescent probe.The experimental conditions including buffer solution,concentration of CdTe QDs,and incubation time were optimized in view of their influence on the FL behavior of the QDs.Under the conditions of 0.2mol/L Na2HPO4-NaH2PO4 buffer solution with pH of 6.5 and incubation for 15min,the emission intensity of CdTe QDs and the concentration of resorcinol followed the Sterm-Volmer equation in the range of 1.6×10-6—2.0×10-5mol/L.The obtained linear fitting equation was：ΔF=1.93＋3.64C（10-6mol/L） with the detection limit of 2.7×10-8mol/L.The method has wide detection range,high sensitivity,and provides a new method for determination of resorcinol. |
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| Keywords: | CdTe Quantum Dots Cysteamine Resorcinol Fluorescence Quenching |
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