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E. A. Terenteva, V. V. Apyari, S. G. Dmitrienko, Yu. A. Zolotov
Spectrophotometric
determination of sulfates using silver nanoparticles stabilized by 6,6-ionene
Abstract
Silver nanoparticles stabilized by 6,6-ionene were synthesized by
reduction of silver nitrate with sodium borohydride. The obtained particles
were characterized by spectrophotometry and transmission electron microscopy.
The possibility of their using for spectrophotometric determination of sulfates
was shown. The method is based on aggregation of the nanoparticles in the
presence of sulfates, which leads to the color change that can be registered by
spectrophotometry. The features of the aggregation of nanoparticles depending
on the interaction time, the acidity solution, the concentration of
nanoparticles and sulfates are studied.
Key words: silver
nanoparticles, 6,6-ionene, aggregation, sulfates, spectrophotometry.
Copyright (C) Chemistry Dept., Moscow State University, 2002
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