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Title: High-performance liquid chromatography separation of unsaturated organic compounds by a monolithic silica column embedded with silver nanoparticles.
Authors: Zhu, Yang
Morisato, Kei
Hasegawa, George
Moitra, Nirmalya
Kiyomura, Tsutomu
Kurata, Hiroki  kyouindb  KAKEN_id  orcid (unconfirmed)
Kanamori, Kazuyoshi  kyouindb  KAKEN_id  orcid (unconfirmed)
Nakanishi, Kazuki  kyouindb  KAKEN_id  orcid (unconfirmed)
Author's alias: 中西, 和樹
Keywords: cis/trans Isomers
High-performance liquid chromatography
Monolithic silica columns
Polyaromatic hydrocarbons
Silver nanoparticles
Issue Date: Aug-2015
Publisher: wiley
Journal title: Journal of separation science
Volume: 38
Issue: 16
Start page: 2841
End page: 2847
Abstract: The optimization of a porous structure to ensure good separation performances is always a significant issue in high-performance liquid chromatography column design. Recently we reported the homogeneous embedment of Ag nanoparticles in periodic mesoporous silica monolith and the application of such Ag nanoparticles embedded silica monolith for the high-performance liquid chromatography separation of polyaromatic hydrocarbons. However, the separation performance remains to be improved and the retention mechanism as compared with the Ag ion high-performance liquid chromatography technique still needs to be clarified. In this research, Ag nanoparticles were introduced into a macro/mesoporous silica monolith with optimized pore parameters for high-performance liquid chromatography separations. Baseline separation of benzene, naphthalene, anthracene, and pyrene was achieved with the theoretical plate number for analyte naphthalene as 36, 000 m(-1). Its separation function was further extended to cis/trans isomers of aromatic compounds where cis/trans stilbenes were chosen as a benchmark. Good separation of cis/trans-stilbene with separation factor as 7 and theoretical plate number as 76, 000 m(-1) for cis-stilbene was obtained. The trans isomer, however, is retained more strongly, which contradicts the long- established retention rule of Ag ion chromatography. Such behavior of Ag nanoparticles embedded in a silica column can be attributed to the differences in the molecular geometric configuration of cis/trans stilbenes.
Description: Article first published online: 15 JUL 2015
Rights: This is the peer reviewed version of the following article: Zhu, Y., Morisato, K., Hasegawa, G., Moitra, N., Kiyomura, T., Kurata, H., Kanamori, K. and Nakanishi, K. (2015), High-performance liquid chromatography separation of unsaturated organic compounds by a monolithic silica column embedded with silver nanoparticles. J. Sep. Science, 38: 2841–2847, which has been published in final form at This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
The full-text file will be made open to the public on 15 JUL 2016 in accordance with publisher's 'Terms and Conditions for Self-Archiving'.
This is not the published version. Please cite only the published version.
DOI(Published Version): 10.1002/jssc.201500444
PubMed ID: 26097062
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