AUTHOR=Duan Qunpeng , Xing Yibo , Guo Kainan 

TITLE=The Detection of Food Additives Using a Fluorescence Indicator Based on 6– p–Toluidinylnaphthalence-2-sulfonate and Cationic Pillar[6]arene

JOURNAL=Frontiers in Chemistry

VOLUME=10

YEAR=2022

URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2022.925881

DOI=10.3389/fchem.2022.925881

ISSN=2296-2646

ABSTRACT=<p>The current study investigated host-guest complexation in 6-p-toluidinylnaphthalene-2-sulfonate (<bold>TNS</bold>), a fluorescence probe used to investigate hydrophobic regions that contain the water-soluble cationic pillar[6]arene (<bold>CP6</bold>). After complexation with <bold>CP6</bold>, the fluorescence intensity of <bold>TNS</bold> was significantly increased. The decreases in the fluorescence intensity of the <bold>TNS</bold>•<bold>CP6</bold> complex when phenolic food-additives are added have been used in indicator displacement assays to detect food additives in the water.</p>