Can RP-8 Plates Be Used in Normal-Phase Systems? A Chemometric Approach to Estimate the Elution Strength of Popular Solvents

Published on Sep 21, 2017in Jpc-journal of Planar Chromatography-modern Tlc0.815
· DOI :10.1556/1006.2017.30.5.9
Łukasz Komsta14
Estimated H-index: 14
,
Urszula Dunin1
Estimated H-index: 1
,
Robert Skibiński13
Estimated H-index: 13
Sources
Abstract
During our previous studies, we discovered that reversed-phase thin-layer chromatography (RP-TLC) plates can behave in typical normal-phase manner, which is not widely known nor used in the literature. Therefore, we decided to investigate this behavior more comprehensively on RP-8 plates. We used 35 model compounds, and performed chemometric screening mixture design approach for 20 popular solvents. This gave us the possibility to estimate separate retention effect for each solvent being the measure of average solvent strength. The results were compared to the previous study done on silica gel. It can be concluded that RP-8 plates can be used in typical normal-phase systems and their behavior does not differ substantially from silica gel plates.
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