Fiche publication
Date publication
juillet 2011
Journal
Analytical chemistry
Auteurs
Membres identifiés du Cancéropôle Est :
Dr BOUDON Julien
Tous les auteurs :
Knoppe S, Boudon J, Dolamic I, Dass A, Bürgi T
Lien Pubmed
Résumé
Size exclusion chromatography (SEC) on a semipreparative scale (10 mg and more) was used to size-select ultrasmall gold nanoclusters (<2 nm) from polydisperse mixtures. In particular, the ubiquitous byproducts of the etching process toward Au(38)(SR)(24) (SR, thiolate) clusters were separated and gained in high monodispersity (based on mass spectrometry). The isolated fractions were characterized by UV-vis spectroscopy, MALDI mass spectrometry, HPLC, and electron microscopy. Most notably, the separation of Au(38)(SR)(24) and Au(40)(SR)(24) clusters is demonstrated.
Référence
Anal. Chem.. 2011 Jul 1;83(13):5056-61
