Abstract − Analytical Sciences, 24(9), 1205 (2008).
Determination of Trace Levels of Cu(II) or Hg(II) in Water Samples by a Thiourea-based Fluorescent Probe
Pinzhu QIN,* Chenggang NIU,*,** Guangming ZENG,* Jianhua ZHU,* and Lin YUE*
*College of Environmental Science and Engineering, Hunan University, Changsha 410082, Hunan, P. R. China
**State Key Laboratory for Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, Hunan, P. R. China
**State Key Laboratory for Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, Hunan, P. R. China
A fluorescent dye, 9-anthraldehyde-thiosemicarbazone (AnthT), used for the determination of Cu(II) or Hg(II) in aqueous solutions, is described. The fluorescence intensity of the probe decreased with increasing concentration of Cu(II) or Hg(II), and was proportional to a certain concentration of Cu(II) or Hg(II). The prepared sensing system presented satisfactory sensitivity and low detection limits. The developed method was successfully employed for preliminary application in natural water and domestic sewage.
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