Determination of mercury (II) by spectrophotometric method based on self assembly of gold nanoparticles

Journal of the Iranian Chemical Research

مقاله 3، دوره 4، شماره 2، شهریور 2011، صفحه 87-91   

نویسندگان

Yan Jun Du^* ؛ Jing Li Yan؛ Mei Ni؛ Bao An Du

College of Chemistry and Environmental Science, Hebei University, Baoding 071002, P.R.. China

چکیده

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.

کلیدواژه‌ها

Gold nanoparticles؛ Mercury (II)؛ Spectrophotometer؛ Glutathione

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