Sodium diethyldithiocarbamate (DDTC-Na) was demonstrated to be a new colorimetric cyanide chemosensor by utilizing an indirect trick. First, some copper ions were added to the colorless aque- ous solution of DDTC-Na. ...Sodium diethyldithiocarbamate (DDTC-Na) was demonstrated to be a new colorimetric cyanide chemosensor by utilizing an indirect trick. First, some copper ions were added to the colorless aque- ous solution of DDTC-Na. Then, the resultant brown solution was studied upon the addition of different anions, including Cl-, I-, IO3-, SO42-, NO-2, Br-, H2PO4-, F-, SCN-, HSO-4, ClO-4 and CN-. It was observed by naked eyes that the brown solution changed to colorless immediately after the addition of the trace cyanide, but there were no changes towards other anions, making DDTC-Na a good selective cyanide chemosensor in pure water.展开更多
基金Supported by the National Natural Science Foundation of China (Grant Nos. 20674059 & 20402011)
文摘Sodium diethyldithiocarbamate (DDTC-Na) was demonstrated to be a new colorimetric cyanide chemosensor by utilizing an indirect trick. First, some copper ions were added to the colorless aque- ous solution of DDTC-Na. Then, the resultant brown solution was studied upon the addition of different anions, including Cl-, I-, IO3-, SO42-, NO-2, Br-, H2PO4-, F-, SCN-, HSO-4, ClO-4 and CN-. It was observed by naked eyes that the brown solution changed to colorless immediately after the addition of the trace cyanide, but there were no changes towards other anions, making DDTC-Na a good selective cyanide chemosensor in pure water.
