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兰州大学机构库  > 化学化工学院  > 期刊论文
题名: Switch-On Fluorescent Sensing of Ascorbic Acid in Food Samples Based on Carbon Quantum Dots-MnO2 Probe
其他题名: "switch-On" Fluorescent Sensing of Ascorbic Acid in Food Samples Based on Carbon Quantum Dots-MnO2Probe
作者: Liu, JJ; Chen, YL; Wang, WF; Feng, J; Liang, MJ; Ma, SD; Chen, XG(陈兴国)
收录类别: SCIE ; EI ; PubMed ; MEDLINE ; BIOSIS ; ESI
ESI注释: 2017-07-19;Highly Cited Papers
出版日期: 2016-01-13
刊名: JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
卷号: 64, 期号:1, 页码:371-380
出版者: AMER CHEMICAL SOC
出版地: WASHINGTON
英文摘要: This work describes a "switch-on" fluorescence approach for sensing of ascorbic acid (AA) in food samples. In the present method, the fluorescence intensity (FL) of carbon quantum dots (CQDs) was first quenched by addition of MnO2 nanosheets through an inner filter effect to form a CQDs-MnO2 probe. When reductive AA was introduced into the quenched CQDs solution, the added MnO2 was destroyed due to the redox reaction between AA and MnO2 nanosheets, and the FL of the system was recovered. Under the optimal conditions, the limit of detection for AA was 42 nM, with a wide concentration linear range of 0.18-90 mu M. Furthermore, the as-fabricated fluorescent sensing system was successfully applied to the analysis of AA in fresh fruits, vegetables, and commercial fruit juices samples with satisfactory results.
关键词: ascorbic acid ; CQDs-MnO2 probe ; fluorescence ; switch-on ; food samples
作者部门: [Liu, Juanjuan ; Chen, Yonglei ; Wang, Weifeng ; Feng, Jie ; Liang, Meijuan ; Ma, Sudai ; Chen, Xingguo] Lanzhou Univ, State Key Lab Appl Organ Chem, Lanzhou 730000, Peoples R China ; [Liu, Juanjuan ; Chen, Yonglei ; Wang, Weifeng ; Feng, Jie ; Liang, Meijuan ; Ma, Sudai ; Chen, Xingguo] Lanzhou Univ, Dept Chem, Lanzhou 730000, Peoples R China ; [Chen, Xingguo] Lanzhou Univ, Key Lab Nonferrous Met Chem & Resources Utilizat, Lanzhou 730000, Peoples R China
通讯作者: Chen, XG (reprint author), Lanzhou Univ, State Key Lab Appl Organ Chem, Lanzhou 730000, Peoples R China.
学科分类: Agriculture; Chemistry; Food Science & Technology
文章类型: Article
所属项目编号: National Natural Science Foundation of China [21375053] ; Specialized Research Fund for the Doctoral Program of Higher Education [20130211110039]
所属项目名称: 国家自然科学基金项目 ; 高等学校博士学科点专项科研基金
项目资助者: NSFC ; MOE
语种: 英语
DOI: 10.1021/acs.jafc.5b05726
ISSN号: 0021-8561
WOS记录号: WOS:000368322900047
EI记录号: 20160401831828
PM记录号: 26652202
BIOSIS记录号: BCI:BCI201600193480
IR记录号: WOS:000368322900047
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内容类型: 期刊论文
URI标识: http://ir.lzu.edu.cn/handle/262010/180304
Appears in Collections:化学化工学院_期刊论文

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Recommended Citation:
Liu, JJ,Chen, YL,Wang, WF,et al. Switch-On Fluorescent Sensing of Ascorbic Acid in Food Samples Based on Carbon Quantum Dots-MnO2 Probe[J]. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY,2016,64(1):371-380.
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