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Separation of Nanostructured Gold Particles by Capillary Zone Electrophoresis
Author(s) -
Wei GuorTzo,
Wang ChurngRen Chris,
Liu FuKen,
Chang SerSing
Publication year - 1998
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.199800008
Subject(s) - chemistry , capillary electrophoresis , capillary action , buffer (optical fiber) , pulmonary surfactant , cationic polymerization , chromatography , analytical chemistry (journal) , electrophoresis , buffer solution , composite material , telecommunications , biochemistry , materials science , organic chemistry , computer science
Abstract The feasibility of employing capillary zone electrophoresis to separate nanostructured gold particles was investigated. The optimal experimental conditions of rinsing procedure, type and concentration of cationic surfactant, buffer concentration, and pH value were identified for the separations. Under the optimal conditions — included rinsing capillary with 0.5 N NaOH, water, and buffer for 3 min in sequence, and running the experiment with 7.5 mM TTAB, 12.5 mM tetraborate, and pH 9.0 of buffer solution at 20 kV applied voltage — nearly resolved separation (R s = 1.0) of gold particles with mean diameter differences as small as 1 nm was achieved.