期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 55, 期 27, 页码 7689-7692出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201602385
关键词
fluorescence; linear discriminant analysis; poly(para-phenyleneethynylene)s; sensors; wine
资金
- CSC (Chinese Scholarship Council)
We present a simple array composed of an anionic and a cationic poly(para-phenyleneethynylene) (PPE), together with an electrostatic complex between the two of them. The individual PPEs and the PPE complex were employed in the sensing of white wines at pH 13; the complex was also successfully employed as a sensor element at pH 3. The sensing mechanism is fluorescence quenching. Thirteen different wines were differentiated by this chemical tongue, which consists of four elements. The fluorescence quenching is not induced by the major components of the wines. Compounds such as acids, sugars, and alcohols alone do not quench the fluorescence, but rather the colored tannins and other polyphenols contained in wine are the main quenchers. However, the major constituents of wine significantly modulate the quenching of the PPEs by the tannins.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据