Highly sensitive fluorescent chemosensor for hypochlorite anion based on a novel irreversible ring-opening strategy

Abstract

A novel strategy to design a fluorescent chemosensor for OCl⁻ which can be used over a pH span of 6–11 by integrating the reactive phenylhydrazo group within rhodamine 6G has been achieved. Upon the reaction with OCl⁻, a significant fluorescence enhancement was triggered with a detection limit down to the 10⁻⁹ M range.