| 功能性CdTe量子点荧光增敏法测定盐酸多巴胺 |
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| 引用本文： | 陈志兵,陈玉,徐基贵,张俊俊,张莉.功能性CdTe量子点荧光增敏法测定盐酸多巴胺[J].分析试验室,2010,29(12). |
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| 作者姓名： | 陈志兵 陈玉 徐基贵 张俊俊 张莉 |
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| 作者单位： | 自旋电子与纳米材料安徽省重点实验室培育基地;宿州学院化学与生命科学系; |
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| 基金项目： | 国家自然科学基金项目，安徽省教育厅重大项目，安徽省教育厅优秀青年人才基金重点项目，宿州学院科研平台开放课题 |
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| 摘 要： | 以CdTe量子点作为荧光探针,基于荧光增敏法对盐酸多巴胺进行了定量检测,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pH7.5的0.2 mol/L Na2HPO4-NaH2PO4缓冲液中,反应时间为20 min,盐酸多巴胺浓度为1.2×10-8~1.0×10-7mol/L时,其线性回归方程为△F=-27.47+25.54c(10-8mol/L),相关系数和检测限分别为0.9992和6×10-11mol/L。该方法为盐酸多巴胺的测定提供了新的方法。
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| 关 键 词： | CdTe量子点 盐酸多巴胺 荧光增敏 |
Determination of dopamine hydrochloride by its enhancement effect of the fluorescence intensity of functionalized CdTe quantum dots |
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| CHEN Zhi-bing,CHEN Yu,XU Ji-gui,ZHANG Jun-jun,ZHANG Li.Determination of dopamine hydrochloride by its enhancement effect of the fluorescence intensity of functionalized CdTe quantum dots[J].Chinese Journal of Analysis Laboratory,2010,29(12). |
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| Authors: | CHEN Zhi-bing CHEN Yu XU Ji-gui ZHANG Jun-jun ZHANG Li |
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| Institution: | CHEN Zhi-bing1,2,CHEN Yu2,XU Ji-gui1,ZHANG Jun-jun2 and ZHANG Li1,2(1.Anhui Key Laboratory of Spin Electron and Nanomaterials(Cultivating Base),Suzhou 234000,2.Department of Chemistry & Biology,Suzhou College,Suzhou 234000) |
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| Abstract: | By using CdTe quantum dots(QDs) as fluorescent(PL) probe,dopamine hydrochloride was quantitatively detected based on PL enhancement of CdTe QDs.The influences of concentration of buffer solution,QDs and the incubation time were investigated and optimized in view of their influence on the FL behavior.The results indicated that in a Na2HPO4-NaH2PO4 buffer solution with pH value of 7.5 and 20 min of incubation,the emission intensity of CdTe QDs and the concentration of dopamine hydrochloride in the range of 1.... |
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| Keywords: | CdTe quantum dots Dopamine hydrochloride Fluorescence enhancement |
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