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Separation and characterisation of detonation nanodiamond by capillary zone electrophoresis


Duffy, E and Mitev, DP and Nesterenko, PN and Kazarian, AA and Paull, B, Separation and characterisation of detonation nanodiamond by capillary zone electrophoresis, Electrophoresis, 35, (12-13) pp. 1864-1872. ISSN 0173-0835 (2014) [Refereed Article]

Copyright Statement

Copyright 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

DOI: doi:10.1002/elps.201300488


A new method for the characterisation of purified detonation nanodiamond (DND) using CZE has been developed. The influence of BGE conditions on electrophoretic mobility, peak shape and particle aggregation was investigated, with resultant observations supported by zeta potential approximations and particle size measurements. Sodium tetraborate (pH 9.3), Tris (pH 9.3) and sodium phosphate (pH 7) were used in studying the BGE concentration effect on a commercial source of chemically stabilised DND. The BGE concentration had a strong effect on the stability of DND in suspension. The formation of aggregates of various sizes was observed as BGE concentration increased. The effect of pH on the electromigration of DND was examined using sodium phosphate (pH 8 and 10). The CZE method was subsequently applied to four different DND samples, which had undergone different routes of purification following detonation synthesis. Each sample produced a unique electrophoretic peak or profile in sodium tetraborate buffer (pH 9.3), such that the actual separation of DND samples from different sources could be achieved.

Item Details

Item Type:Refereed Article
Keywords:aggregation, capillary electrophoresis, detonation nanodiamond, size distribution, zeta potential
Research Division:Chemical Sciences
Research Group:Analytical chemistry
Research Field:Separation science
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the chemical sciences
UTAS Author:Duffy, E (Miss Emer Duffy)
UTAS Author:Mitev, DP (Dr Dimitar Mitev)
UTAS Author:Nesterenko, PN (Professor Pavel Nesterenko)
UTAS Author:Kazarian, AA (Dr Tom Kazarian)
UTAS Author:Paull, B (Professor Brett Paull)
ID Code:93691
Year Published:2014
Web of Science® Times Cited:11
Deposited By:Austn Centre for Research in Separation Science
Deposited On:2014-08-13
Last Modified:2018-03-16

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