Selective detection of cyanide ion in 100 % water by indolium based dual reactive binding site optical sensor

Article abstract of DOI:10.1016/j.jphotochem.2020.112571

The indolium based sensor (R) system was designed, synthesized, characterized and its cyanide recognizing abilities are examined in 100 % water. The sensor attach with cyanide ion through nucleophilic addition to C atom of the indolium C[dbnd]N group. Also the sensor displayed colorimetric and fluorimetric behavior and it can be simply observed by naked eye. The addition of other chosen anions does not affect the sensor response towards cyanide ion. Test strip constructed on R was act as a convenient test kit to distinguish cyanide ion. Besides, the recognizing ability of sensor has been effectively applied in real water samples and this was validated with HPLC technique. Thus the receptor can be used as an effective sensor to sense cyanide ion water.