KMS Chongqing Institute of Green and Intelligent Technology, CAS
| Indirect detection of alcoholic strength in spirits by fluorescence method using the polyethyleneimine capped ZnO QDs | |
Geng, Shou1; Lin, Shu Min1; Liu, Shi Gang1; Zhang, Wei2  ; Li, Nian Bing1; Luo, Hong Qun1
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| 2016-11-29 | |
| 摘要 | We synthesized polyethyleneimine capped ZnO quantum dots (PEI-ZnO QDs) which dispersed well in ethanol by using a two-step method. UV-visible absorption spectroscopy, photoluminescence, Fourier transform infrared spectroscopy, high resolution transmission electron microscope, and field emission scanning electron microscope were used to characterize the as-prepared PEI-ZnO QDs. It emitted green-yellow fluorescence (527 nm) for excitation at 355 nm. We used the PEI-ZnO QDs to determine the alcoholic strength because of its different property in water and ethanol which caused decrease in the PEI-ZnO QDs fluorescence intensity with increasing water content. With this method, we determined the alcoholic strength of different artificial samples with a linear range from 20% to 60% vol and detected commercial spirits with satisfactory results. (C) 2016 Elsevier B.V. All rights reserved. |
| 关键词 | PEI capped ZnO QDs Alcoholic strength Fluorescence |
| DOI | 10.1016/j.snb.2016.06.043 |
| 发表期刊 | SENSORS AND ACTUATORS B-CHEMICAL
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| ISSN | 0925-4005 |
| 卷号 | 236页码:591-596 |
| 通讯作者 | Luo, HQ (reprint author), Southwest Univ, Sch Chem & Chem Engn, Minist Educ, Key Lab Ecoenvironm Gorges Reservoir Reg 3, Chongqing 400715, Peoples R China. ; Zhang, W (reprint author), Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China. |
| 收录类别 | SCI |
| WOS记录号 | WOS:000382229700071 |
| 语种 | 英语 |
