Purification of dodecanethiol derivatised gold nanoparticles
Literature Information
Cecilia A. Waters, Allan J. Mills, Kathleen A. Johnson, David J. Schiffrin
Monolayer protected gold nanoparticles synthesised by a two-phase method contain a significant amount of tetraoctylammonium bromide (TOABr), the quaternary ammonium salt used as the phase transfer reagent, as a persistently retained impurity. A simple purification protocol is described.
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