Abstract
Synthesis of silver nanoparticles (AgNPs) and analytical development of silver nanoparticles has been done. AgNPs were making by chemical reduction method using trisodium citrate as a reducing agent. AgNPS was Prepared with a variant of silver nitrate concentration, trisodium citrate concentration, and stirring time to result in the best silver nanoparticles. AgNPs were characterized using UV-Vis Spectrophotometer, Particle Size Analyzer (PSA), Transmission Electron Microscopy (TEM). AgNPs was applied as the colorimetric sensor of histamine. The histamine presence can induce the aggregation of silver nanoparticles by a color change from yellow to brown.
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