Mass Spectrometric Analysis of Water-soluble Gold Nanoclusters

Authors: Maya, L.1; Chen, C.H.2; Stevenson, K.A.2; Kenik, E.A.3; Allman, S.L.4; Thundat, T.G.2

Source: Journal of Nanoparticle Research, Volume 4, Number 5, October 2002 , pp. 417-422(6)

Publisher: Springer

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Batches of water-soluble gold nanoclusters of nominal 2.0 or 3.5 nm diameter were prepared to evaluate particle size determinations by a number of techniques such as transmission electron microscopy or atomic force microscopy and to validate estimates derived by mass spectrometric analysis using matrix-assisted laser desorption ionization (MALDI). Good agreement was found and MALDI lends itself to analyses even in the presence of aggregates.

Keywords: aggregates; measurements; particle size; scanning electron microscopy; scanning probe microscopy; transmission electron microscopy

Document Type: Research Article

Affiliations: 1: Chemical and Analytical Sciences Division and Center for Advanced Engineering Science Advanced Research, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6119, USA (Fax: 865 574 4939; E-mail: 2: Life Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA 3: Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA 4: Life Sciences Division,Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA

Publication date: October 1, 2002

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