摘要

A selective and sensitive method to detect glutathione (GSH) based on the complex of a coumarin-based probe and Cu2+ is reported. In response to GSH, the system provides remarkable fluorescence intensity change with the color change from colorless to yellow, and the detect limit is determined to be 3.6 x 10(-7)M. The background amino acids show small or no interference on the detection of GSH. Moreover, this probe could be applied to detect GSH via intracellular fluorescent imaging.