Fluorescent chemosensor based on Schiff base for selective detection of zinc(II) in aqueous solution

✍ Scribed by Lei Li; Yong-Qiang Dang; Hong-Wei Li; Bin Wang; Yuqing Wu

• Publisher: Elsevier Science
• Year: 2010
• Tongue: French
• Weight: 304 KB
• Volume: 51
• Category: Article
• ISSN: 0040-4039
• DOI: 10.1016/j.tetlet.2009.11.070

✦ Synopsis

A chemosensor 1, based on the Schiff base, is easily prepared by reacting tryptophan and 2-hydroxy-1naphthaldehyde in methanol. The optical properties of 1 are investigated in buffered aqueous solution, which displays specific recognition to Zn 2+ , and especially avoids the interference of Cd 2+ when 1 is tested against a range of physiological and environmentally relevant metal ions. Such a novel fluorescent probe can also be used to detect Zn 2+ in live cells.