Author/Authors :
Du, Yan Jun College of Chemistry and Environmental Science - Hebei University - Baoding 071002, P.R.. China , Yan, Jing Li College of Chemistry and Environmental Science - Hebei University - Baoding 071002, P.R.. China , Ni, Mei College of Chemistry and Environmental Science - Hebei University - Baoding 071002, P.R.. China , An Du, Bao College of Chemistry and Environmental Science - Hebei University - Baoding 071002, P.R.. China
Abstract :
Due to the binding of the –COO- group with the mercury (II), gold nanoparticles
functionalized with glutathione can self-assemble to form a supermolecular network in the HAc-
NaAc buffer solution. The aggregation of functionalized gold nanoparticles and mercury (II)
caused the shift of maximum absorption peak of the UV-Vis spectrum from 520 nm to 609 nm.
Based on this principle, a simple spectrophotometric method for determination of mercury (II)
was preliminarily established. The detection limit of the developed method for determination of
mercury (II) was about 8.5×10-8 mol L-1.
Keywords :
Gold nanoparticles , Mercury (II) , Spectrophotometer , Glutathione
