title: Colorimetric detection of cyanide with phenyl thiourea derivatives.
abstract: Three structurally simple thiourea derivatives 1-3 were prepared, and their chromogenic behaviors toward various anions were investigated in aqueous solution. Among them 1 showed good sensitivity and selectivity for cyanide ion and also can distinguish it from other anions by different color changes. Besides that, the receptor 1 has a sensitive detection limit (1.27 μM) for cyanide ion accordingly it can be used as a colorimetric sensor for the determination of cyanide ion. The use of the test strip of sensor 1 to detect cyanide ion was also reported.
authors.affiliation: Department of Applied Chemistry, Providence University, Taichung, Taiwan, ROC.
authors.forename: Yi-Shan
authors.initials: YS
authors.lastname: Lin
authors.forename: Jia-Xing
authors.initials: JX
authors.lastname: Zheng
authors.forename: Yao-Kang
authors.initials: YK
authors.lastname: Tsui
authors.forename: Yao-Pin
authors.initials: YP
authors.lastname: Yen
mesh_terms: D000838:Anions / Q000737:chemistry*; D003124:Colorimetry; D003486:Cyanides / Q000032:analysis*; D010670:Phenylthiourea / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet
chemical_list: D000838:Anions; D003486:Cyanides; D010670:Phenylthiourea