Determination of trace levels of Cu(II) or Hg(II) in water samples by a thiourea-based fluorescent probe.
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.
Qin
Pinzhu
P
College of Environmental Science and Engineering, Hunan University, PR China.
Niu
Chenggang
C
Zeng
Guangming
G
Zhu
Jianhua
J
Yue
Lin
L
D000873:Anthracenes / Q000138:chemical synthesis* / Q000737:chemistry; D003300:Copper / Q000032:analysis*; D000431:Ethanol / Q000737:chemistry; D005453:Fluorescence; D005456:Fluorescent Dyes / Q000138:chemical synthesis* / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D008628:Mercury / Q000032:analysis*; D012680:Sensitivity and Specificity; D013050:Spectrometry, Fluorescence; D013882:Thiosemicarbazones / Q000138:chemical synthesis* / Q000737:chemistry; D013890:Thiourea / Q000138:chemical synthesis* / Q000737:chemistry; D013997:Time Factors; D014867:Water / Q000737:chemistry*
C534867:9-anthraldehyde-thiosemicarbazone; D000873:Anthracenes; D005456:Fluorescent Dyes; D013882:Thiosemicarbazones; D014867:Water; D000431:Ethanol; D003300:Copper; D008628:Mercury; D013890:Thiourea