An incisive optical recognition of monohydrogen phosphate by a fluorescein-based chemodosimeter

Abstract

Numerous methods for the determination of phosphates (H₂PO₄⁻, HPO₄²⁻, PO₄³⁻, PPi) are described in the literature. However, the design of optical probes which are able to recognize specifically monohydrogen phosphate (MHP) ions, i.e. HPO₄²⁻, has been rarely considered. We herein devised an incisive chemodosimeter (FLH) for detecting HPO₄²⁻ over other phosphates successfully.