posted on 2011-11-21, 00:00authored byDebabrata Maity, T. Govindaraju
A new highly selective colorimetric chemosensor for Co2+ was developed based on coumarin-conjugated thiocarbanohydrazone. The ligand senses Co2+ in solution by changing its color from light yellow to deep pink. The sensor has been used in the development of practically viable colorimetric kits and as a staining agent for Co2+ in microorganisms.