Preparation and evaluation of lauryl methacrylate monoliths with embedded silver nanoparticles for capillary electrochromatography
Preparation and evaluation of lauryl methacrylate monoliths with embedded silver nanoparticles for capillary electrochromatography
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DOI：
10.1002/elps.201200408
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发表时间：
2013-03
期刊：
影响因子：
2.9
通讯作者：
María Navarro-Pascual-Ahuir;M. Lerma-García;G. Ramis‐Ramos;E. Simó-Alfonso;J. M. Herrero-Martínez
中科院分区：
文献类型：
--
作者：
María Navarro-Pascual-Ahuir;M. Lerma-García;G. Ramis‐Ramos;E. Simó-Alfonso;J. M. Herrero-Martínez
In this article, capillary columns constituted by lauryl methacrylate monoliths with embedded silver nanoparticles (AgNPs) were developed and tested. Two incorporation approaches of AgNPs in monoliths were explored. The AgNPs were either photogenerated in situ during polymerization of the monolith by UV irradiation, or incorporated to the polymerization mixture (ex situ). The influence of the AgNP concentration on the morphological and chromatographic properties of the polymer matrix was investigated, and both the in situ and ex situ approaches were comparatively discussed. The morphology of the monoliths was characterized by electron microscopic techniques, and their electrochromatographic performance was also evaluated with test mixtures of neutral compounds (sterols, fatty acid methyl esters, tocopherols, and polyaromatic hydrocarbons).
