Cross-Linker Effects on the Separation Efficiency on (Poly)methacrylate Capillary Monolithic Columns. Part I. Reversed-Phase Liquid Chromatography

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F13%3A39896309" target="_blank" >RIV/00216275:25310/13:39896309 - isvavai.cz</a>
Result on the web
<a href="http://www.sciencedirect.com/science/article/pii/S0021967312018420" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0021967312018420</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.chroma.2012.12.003" target="_blank" >10.1016/j.chroma.2012.12.003</a>

Result language
angličtina
Original language name
Cross-Linker Effects on the Separation Efficiency on (Poly)methacrylate Capillary Monolithic Columns. Part I. Reversed-Phase Liquid Chromatography
Original language description
We synthesized 8 polymethacrylate monolithic capillary columns using laurylmethacrylate functional monomer and various cross-linking monomers differing in the polarity and size. The efficiency of monolithic columns for low-molecular compounds significantly improved with increasing number of repeat non-polar methylene groups in the cross-linker molecules, correlating with greater proportion of small pores with size less than 50 nm. The best efficiency with HETP = 25 mu m for alkylbenzenes was achieved for columns prepared using hexamethylene dimethacrylate (HEDMA). Columns prepared with polar (poly)oxyethylene dimethacrylate cross-linkers show also improved efficiency with increasing chain length and generally better performance in comparison to the (poly)methylene dimethacrylate cross-linkers of comparable size, however with less apparent effects of the chain lengths on the pore distribution. The monolithic columns prepared with tetraoxyethylene dimethacrylate (TeEDMA) showed the best
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CB - Analytical chemistry, separation
OECD FORD branch
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Project
<a href="/en/project/GAP206%2F12%2F0398" target="_blank" >GAP206/12/0398: Two-dimensional separations in liquid media</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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