Authors: Ali R Firooz, Mohsen Movahedi, Ali A Ensafi

Publication date: 2012/6/14

Journal name: Sensors and Actuators B: Chemical

Publisher: Elsevier

A reversible optical membrane sensor for detection of Hg (II) was developed based on the
colorimetric determination of tetrathia-12-crown-4-Hg (II), incorporating chromoionophore I
(ETH5294) as a lipophilic H+-selective indicator, and sodium tetra phenyl borate (NaTPB) as
a lipophilic anionic site. A decrease in absorption of the membrane at 664nm and/or
increase at 555nm could be used as a suitable wavelength for quantitative determination of
Hg (II). This membrane is capable of determining mercury (II) ions over a wide linear ...