Monodispersed Gold Nanoparticles as a Probe for the Detection of Hg2+ Ions in Water.

Gold nanoparticles were synthesized using Ananas comosus as reducing agent. UV-visible spectra show the surface plasmon resonance peak at 544 nm. TEM measurement shows that the formation of monodispersed spherical nanoparticles with average size of 7 nm.