Development of a specific and highly sensitive optical chemical sensor for determination of Hg(II) based on a new synthesized ionophore

A novel specific optical chemical sensor (optode) for determination of mercury(II) ions is developed in a plasticized PVC membrane. The sensor has a linear response to Hg(II) in the range of 4.7 × 10− 4-7.2 × 10− 13 mol L− 1 with a detection limit of 1.85 × 10− 13 mol L− 1. The optical sensor was successfully applied to the determination of Hg(II) in real samples.