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Nanostructured Silver Coating as a Stationary Phase for Capillary Gas Chromatography

A capillary column coated with nanostructured silver coating was fabricated for gas chromatography. The nanostructured silver coating, about 80–120 nm in thickness, was prepared as the stationary phase via silver mirror reaction, and was characterized by SEM and EDS. The column was evaluated using d...

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Autores principales: Jiang, Qiong, Xu, Peng, Feng, Juanjuan, Sun, Min
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6943660/
https://www.ncbi.nlm.nih.gov/pubmed/31817955
http://dx.doi.org/10.3390/molecules24244491
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author Jiang, Qiong
Xu, Peng
Feng, Juanjuan
Sun, Min
author_facet Jiang, Qiong
Xu, Peng
Feng, Juanjuan
Sun, Min
author_sort Jiang, Qiong
collection PubMed
description A capillary column coated with nanostructured silver coating was fabricated for gas chromatography. The nanostructured silver coating, about 80–120 nm in thickness, was prepared as the stationary phase via silver mirror reaction, and was characterized by SEM and EDS. The column was evaluated using different types of model analytes, including n-alkanes, n-alcohols, benzenes, and Grob mixture. A baseline separation of ten n-alkanes on the silver column (15 m × 0.20 mm i.d.) was achieved within 3.5 min through the main hydrophobic mechanism. A mixture of six n-alcohols, or another mixture containing three butanol isomers and two octanol isomers, was separated well on the column. The column separated some benzenes containing benzene, toluene, ethylbenzene, p-xylene, o-xylene, styrene, benzaldehyde, and benzyl alcohol. A Grob mixture containing seven analytes was also separated successfully. Based on a multiple retention mechanism such as hydrophobic, dipole-dipole, and dipole-induced dipole interactions, the silver column achieved a good separation of twelve different types of compounds within 2.5 min. The column presented satisfactory separation repeatability with relative standard deviation of retention time between 0.073% and 0.591%. The results indicate that the silver column is promising for gas chromatographic separation.
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spelling pubmed-69436602020-01-10 Nanostructured Silver Coating as a Stationary Phase for Capillary Gas Chromatography Jiang, Qiong Xu, Peng Feng, Juanjuan Sun, Min Molecules Article A capillary column coated with nanostructured silver coating was fabricated for gas chromatography. The nanostructured silver coating, about 80–120 nm in thickness, was prepared as the stationary phase via silver mirror reaction, and was characterized by SEM and EDS. The column was evaluated using different types of model analytes, including n-alkanes, n-alcohols, benzenes, and Grob mixture. A baseline separation of ten n-alkanes on the silver column (15 m × 0.20 mm i.d.) was achieved within 3.5 min through the main hydrophobic mechanism. A mixture of six n-alcohols, or another mixture containing three butanol isomers and two octanol isomers, was separated well on the column. The column separated some benzenes containing benzene, toluene, ethylbenzene, p-xylene, o-xylene, styrene, benzaldehyde, and benzyl alcohol. A Grob mixture containing seven analytes was also separated successfully. Based on a multiple retention mechanism such as hydrophobic, dipole-dipole, and dipole-induced dipole interactions, the silver column achieved a good separation of twelve different types of compounds within 2.5 min. The column presented satisfactory separation repeatability with relative standard deviation of retention time between 0.073% and 0.591%. The results indicate that the silver column is promising for gas chromatographic separation. MDPI 2019-12-08 /pmc/articles/PMC6943660/ /pubmed/31817955 http://dx.doi.org/10.3390/molecules24244491 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Jiang, Qiong
Xu, Peng
Feng, Juanjuan
Sun, Min
Nanostructured Silver Coating as a Stationary Phase for Capillary Gas Chromatography
title Nanostructured Silver Coating as a Stationary Phase for Capillary Gas Chromatography
title_full Nanostructured Silver Coating as a Stationary Phase for Capillary Gas Chromatography
title_fullStr Nanostructured Silver Coating as a Stationary Phase for Capillary Gas Chromatography
title_full_unstemmed Nanostructured Silver Coating as a Stationary Phase for Capillary Gas Chromatography
title_short Nanostructured Silver Coating as a Stationary Phase for Capillary Gas Chromatography
title_sort nanostructured silver coating as a stationary phase for capillary gas chromatography
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6943660/
https://www.ncbi.nlm.nih.gov/pubmed/31817955
http://dx.doi.org/10.3390/molecules24244491
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