基于量子点的荧光传感微流纸基芯片离子印迹法检测铜离子
王欣然; 李博伟; 尤慧艳; 陈令新
刊名分析化学
2015-10-15
卷号43期号:10页码:1499-1504
关键词纸芯片 离子印迹聚合物 铜离子 碲化镉量子点
ISSN号0253-3820
其他题名An Ion Imprinted Polymers Grafted Paper-based Fluorescent Sensor Based on Quantum Dots for Detection of Copper ions
产权排序大连大学环境与化学工程学院;中国科学院海岸带环境过程与生态修复重点实验室;山东省海岸带环境工程技术研究中心;中国科学院烟台海岸带研究所;
中文摘要基于离子印迹技术,采用3-氨丙基三乙氧基硅烷(APTES)作为功能单体,正硅酸乙酯(TEOS)作为交联剂,以铜离子(Cu2+)为模板离子,利用表面印迹法在室温下p H=6.5的水溶液中反应,于玻璃纸的表面合成印迹聚合物。玻璃纤维纸的表面经过活化、接氨基处理,接枝碲化镉量子点,成为具有荧光传感性能的基底,而接枝在其表面的离子印迹聚合物增强了体系的选择性,线性范围为0.032~3.20 mg/L,检出限为0.012 mg/L。将其应用于湖水及海水样品中加标Cu2+含量的检测,并与ICP-MS检测的结果进行了比较,结果表明,这种基于荧光传感的印迹纸芯片具有良好的分析性能。
英文摘要For copper ions( Cu2 +) analysis in environmental samples,a novel highly selective fluorescent sensor was fabricated based on the microfluidic paper-based analytical device to detect Cu2 +ions in the aqueous samples. The glass fiber paper was activated using HCl solution and incubated in cadmium telluride( Cd Te) quantum dots solution to gain a fluorescent substrate. The Cu2 +ions imprinted polymers( Cu-IIP)was synthesized using APTES as a functional monomer and TEOS as a cross-linking agent on the surface of the glass fiber in paper at room temperature. This fluorescent sensor was successfully applied to determine the amount of Cu2 +ions in aqueous samples that mainly depended on the electron transition between the Cd Te quantum dots and the Cu2 +ions for specific recognition Cu2 +ions. A good linearity was presented in the Cu2 +concentration range of 0. 032- 3. 20 mg / L,and the limits of detection could be achieved at 0. 012 mg / L.Satisfactory recoveries ranging from 99. 9% to 122. 5% were attained for the spiked seawater and lake water samples with four concentration levels of Cu2 +ions. The Cu-IIP@ QDs paper showed a good performance and significant application perspectives for rapid detection of copper ion by comparing with the results of ICP-MS.
收录类别CSCD
语种中文
CSCD记录号CSCD:5539454
内容类型期刊论文
源URL[http://ir.yic.ac.cn/handle/133337/17377]  
专题烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
作者单位1.大连大学环境与化学工程学院
2.中国科学院海岸带环境过程与生态修复重点实验室
3.山东省海岸带环境工程技术研究中心
4.中国科学院烟台海岸带研究所
推荐引用方式
GB/T 7714
王欣然,李博伟,尤慧艳,等. 基于量子点的荧光传感微流纸基芯片离子印迹法检测铜离子[J]. 分析化学,2015,43(10):1499-1504.
APA 王欣然,李博伟,尤慧艳,&陈令新.(2015).基于量子点的荧光传感微流纸基芯片离子印迹法检测铜离子.分析化学,43(10),1499-1504.
MLA 王欣然,et al."基于量子点的荧光传感微流纸基芯片离子印迹法检测铜离子".分析化学 43.10(2015):1499-1504.
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