Jia, MF; Zhang, Z; Li, JH
; Shao, HJ; Chen, LX; Yang, XB发表期刊SENSORS AND ACTUATORS B-CHEMICAL
ISSN0925-4005
2017-11
卷号252页码:934-943
关键词2,4-Dichlorophenoxyacetic acidMolecular imprintingQuantum dotsMesoporousFluorescent detection
研究领域Chemistry, Analytical; Electrochemistry; Instruments & Instrumentation
DOI10.1016/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：53[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.cnhttp://ir.yic.ac.cn/handle/133337/24355
专题中科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
中科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 7714Jia, 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.
APAJia, 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.
MLAJia, 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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