| 功能性CdTe量子点荧光增敏法测定对苯二胺 |
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| 引用本文： | 陈志兵,杨茂义,李梦瑶,胡莉萍,张洋. 功能性CdTe量子点荧光增敏法测定对苯二胺[J]. 光谱实验室, 2011, 28(6): 2807-2810 |
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| 作者姓名： | 陈志兵 杨茂义 李梦瑶 胡莉萍 张洋 |
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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： | 国家自然科学基金项目(20871089); 安徽省教育厅重大项目(KJ2010ZD09); 安徽省优秀青年人才基金项目(2009SQRZ173ZD); 宿州学院科研平台开放课题(2010YKF05); 大学生科研项目(KYLXLKZD06) |
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| 摘 要： | 以CdT e量子点作为荧光探针,基于荧光增敏法对对苯二胺进行了定量检测,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 7.6的0.2m ol/LN a2HPO4-N aH2PO4缓冲液中,反应时间为15m in,对苯二胺浓度为6.0×10-6—1.8×10-5m ol/L范围时,其线性回归方程为ΔF=75.64＋7.95C（10-6m ol/L）,相关系数和检出限分别为0.9989和2.1×10-8m ol/L。该方法检出限低,灵敏度高,为对苯二胺的测定提供了新的选择。
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| 关 键 词： | CdTe量子点 对苯二胺 荧光增敏 |
Determination of p-Phenylenediamine by Fluorescence Radiosensitizing Method with Functionalized CdTe Quantum Dots |
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| CHEN Zhi-Bing,YANG Mao-Yi,LI Meng-Yao,HU Li-Ping,ZHANG Yang. Determination of p-Phenylenediamine by Fluorescence Radiosensitizing Method with Functionalized CdTe Quantum Dots[J]. Chinese Journal of Spectroscopy Laboratory, 2011, 28(6): 2807-2810 |
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| Authors: | CHEN Zhi-Bing YANG Mao-Yi LI Meng-Yao HU Li-Ping ZHANG Yang |
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| Affiliation: | CHEN Zhi-Binga,b YANG Mao-Yib LI Meng-Yaob HU Li-Pingb ZHANG Yangba(Anhui Key Laboratory of Spin Electron and Nanomaterials Cultivating Base,Suzhou,Anhui 234000,P.R.China)b(Department of Chemistry & Biology,Suzhou College,P.R.China) |
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| Abstract: | With CdTe quantum dots（QDs） as fluorescent probe,p-phenylenediamine was quantitatively detected based on fluorescence radiosensitizing method.The influences of concentration of buffer solution and QDs as well the incubation time were investigated.In the Na2HPO4-NaH2PO4 buffer solution concentration of 0.2mol/L with pH value of 7.6 for incubation time of 20min,the concentration of p-phenylenediamine followed the equation in the range of 6.0×10-6—1.8×10-5mol/L.The obtained linear fitting equation was ΔF=75.64＋7.95C（10-6mol/L） with the correlation coefficient of 0.9989.The detection limit was 2.1×10-8mol/L.The method has low detection limit and high sensitivity,and that can be applied for the new method for determination of p-phenylenediamine. |
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| Keywords: | CdTe Quantum Dots p-Phenylenediamine Fluorescence Enhancement |
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