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	A molecular imprinting fluorescence sensor based on quantum dots and a mesoporous structure for selective and sensitive detection of 2,4-dichlorophenoxyacetic acid
	Jia, MF; Zhang, Z; Li, JH; Shao, HJ; Chen, LX; Yang, XB
发表期刊	SENSORS AND ACTUATORS B-CHEMICAL
ISSN	0925-4005
	2017-11
卷号	252页码:934-943
关键词	2,4-Dichlorophenoxyacetic acid Molecular imprinting Quantum dots Mesoporous Fluorescent detection
研究领域	Chemistry, Analytical ; Electrochemistry ; Instruments & Instrumentation
DOI	10.1016/j.snb.2017.06.090
产权排序	[Jia, Mengfan; Zhang, Zhong; Shao, Hongjun; Yang, Xingbin] Shaanxi Normal Univ, Coll Food Engn & Nutr Sci, Shaanxi Engn Lab Food Green Proc & Safety Control, Xian 710119, Shaanxi, Peoples R China; [Li, Jinhua; Chen, Lingxin] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China
作者部门	海岸带环境工程技术研究与发展中心
英文摘要	A novel molecular imprinting fluorescence sensor was constructed by anchoring mesoporous structured imprinting microspheres on the surfaces of quantum dots (QDs) surface for the selective and sensitive detection of 2,4-dichlorophenoxyacetic acid (2,4-D) on the basis of an electron-transfer-induced fluorescence quenching mechanism. The resulting sensor was well characterized and had ideal spherical morphology and fluorescence properties. Under the optimized conditions, the sensor exhibited a satisfactory linearity within 0.66-80 mu M, with a low detection limit of 2.1 nM within 20 min. The sensor was successfully applied for the detection of 2,4-D in bean sprout samples, and high recoveries at three spiking levels of 2,4-D, ranging from 95.0 to 110.1%, with precisions below 4.9%, were attained. By taking advantage of surface imprinting and QDs, the sensor exhibited high sensitivity and good selectivity for the separation, enrichment and detection of 2,4-D in real food samples, thereby ensuring food safety. (C) 2017 Elsevier B.V. All rights reserved.
文章类型	Article
资助机构	National Natural Science Foundation of China [31671823, 21477160] ; Shanxi Province Agricultural Science and Technology Innovation and Key Project [2016NY-181, 2016NY-174] ; Fundamental Research Funds for the Central Universities in China [GK201603099, GK201501006]
收录类别	SCI
语种	英语
关键词[WOS]	2,4-Dichlorophenoxyacetic acid ; Molecular imprinting ; Quantum dots ; Mesoporous ; Fluorescent detection
研究领域[WOS]	Chemistry ; Electrochemistry ; Instruments & Instrumentation
WOS记录号	WOS:000408277500111
引用统计	被引频次：80[WOS]   [WOS记录]     [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/24355
专题	中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境工程技术研究与发展中心 中国科学院海岸带环境过程与生态修复重点实验室
作者单位	1.Shaanxi Normal Univ, Coll Food Engn & Nutr Sci, Shaanxi Engn Lab Food Green Proc & Safety Control, Xian 710119, Shaanxi, Peoples R China; 2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China
推荐引用方式 GB/T 7714	Jia, MF,Zhang, Z,Li, JH,et al. A molecular imprinting fluorescence sensor based on quantum dots and a mesoporous structure for selective and sensitive detection of 2,4-dichlorophenoxyacetic acid[J]. SENSORS AND ACTUATORS B-CHEMICAL,2017,252:934-943.
APA	Jia, MF,Zhang, Z,Li, JH,Shao, HJ,Chen, LX,&Yang, XB.(2017).A molecular imprinting fluorescence sensor based on quantum dots and a mesoporous structure for selective and sensitive detection of 2,4-dichlorophenoxyacetic acid.SENSORS AND ACTUATORS B-CHEMICAL,252,934-943.
MLA	Jia, MF,et al."A molecular imprinting fluorescence sensor based on quantum dots and a mesoporous structure for selective and sensitive detection of 2,4-dichlorophenoxyacetic acid".SENSORS AND ACTUATORS B-CHEMICAL 252(2017):934-943.

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