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Monitoring the on-line concentration and separation of gold nanoparticles using the reversed electrode polarity stacking mode and micellar electrokinetic chromatography.
Anal Sci. 2010; 26(11):1145-50.AS

Abstract

In this study, I separated gold nanoparticles (Au NPs) using the reversed electrode polarity stacking mode (REPSM) of a capillary electrophoresis system for on-line enhancement prior to performing micellar electrokinetic chromatography (MEKC). In the first part of this paper, I discuss the effects of several new and important parameters, the nature of the added salt, the pH of the sample matrix, and the size of the injection buffer plug that appears after introducing the samples, on the systems' on-line concentration and separation performance for a variety of sample compositions. In the second part of this paper, I describe my use of the optimized conditions to monitor the migration of the Au NPs during the concentration and separation processes. The results of these studies suggest that combining REPSM with MEKC is a very good strategy for the on-line concentration and separation of Au NPs at trace concentrations.

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Authors+Show Affiliations

Liu FK
Department of Applied Chemistry, National University of Kaohsiung, No. 700, Kaohsiung University Road, Nan Tzu District, Kaohsiung 811, Taiwan.

MeSH

Chromatography, Micellar Electrokinetic CapillaryElectrodesElectrophoresis, CapillaryGoldHydrogen-Ion ConcentrationMetal NanoparticlesParticle SizeSalts

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

21079343

Citation

Liu, Fu-Ken. "Monitoring the On-line Concentration and Separation of Gold Nanoparticles Using the Reversed Electrode Polarity Stacking Mode and Micellar Electrokinetic Chromatography." Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry, vol. 26, no. 11, 2010, pp. 1145-50.
Liu FK. Monitoring the on-line concentration and separation of gold nanoparticles using the reversed electrode polarity stacking mode and micellar electrokinetic chromatography. Anal Sci. 2010;26(11):1145-50.
Liu, F. K. (2010). Monitoring the on-line concentration and separation of gold nanoparticles using the reversed electrode polarity stacking mode and micellar electrokinetic chromatography. Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry, 26(11), 1145-50.
Liu FK. Monitoring the On-line Concentration and Separation of Gold Nanoparticles Using the Reversed Electrode Polarity Stacking Mode and Micellar Electrokinetic Chromatography. Anal Sci. 2010;26(11):1145-50. PubMed PMID: 21079343.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Monitoring the on-line concentration and separation of gold nanoparticles using the reversed electrode polarity stacking mode and micellar electrokinetic chromatography. A1 - Liu,Fu-Ken, PY - 2010/11/17/entrez PY - 2010/11/17/pubmed PY - 2011/6/3/medline SP - 1145 EP - 50 JF - Analytical sciences : the international journal of the Japan Society for Analytical Chemistry JO - Anal Sci VL - 26 IS - 11 N2 - In this study, I separated gold nanoparticles (Au NPs) using the reversed electrode polarity stacking mode (REPSM) of a capillary electrophoresis system for on-line enhancement prior to performing micellar electrokinetic chromatography (MEKC). In the first part of this paper, I discuss the effects of several new and important parameters, the nature of the added salt, the pH of the sample matrix, and the size of the injection buffer plug that appears after introducing the samples, on the systems' on-line concentration and separation performance for a variety of sample compositions. In the second part of this paper, I describe my use of the optimized conditions to monitor the migration of the Au NPs during the concentration and separation processes. The results of these studies suggest that combining REPSM with MEKC is a very good strategy for the on-line concentration and separation of Au NPs at trace concentrations. SN - 1348-2246 UR - https://www.unboundmedicine.com/medline/citation/21079343/Monitoring_the_on_line_concentration_and_separation_of_gold_nanoparticles_using_the_reversed_electrode_polarity_stacking_mode_and_micellar_electrokinetic_chromatography_ L2 - http://japanlinkcenter.org/JST.JSTAGE/analsci/26.1145?from=PubMed DB - PRIME DP - Unbound Medicine ER -