Characterization of stationary phases based on monosubstituted benzene retention indices using correspondence factor analysis and linear solvation energy relationships in RPLC
Journal of the Iranian Chemical Society, ISSN: 1735-2428, Vol: 15, Issue: 10, Page: 2295-2305
2018
- 2Citations
- 5Captures
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Article Description
In reversed-phase liquid chromatography (RPLC), the comparison of experimental results obtained from different columns is a complex problem. A correspondence factor analysis (CFA) and a linear solvation energy relationship (LSER) were applied on retention data to characterize second-order intermolecular interactions responsible for retention on a set of RPLC columns. Seven octadecyl-C columns with different packing materials are obtained from different manufacturers and one octyl-C column. The retention data were determined under isocratic conditions using a methanol–water (65:35, v/v) mobile phase. The chromatographic retention indices based on alkan-2-ones and alkyl aryl ketones retention index scales are calculated using a multiparametric least-squares regressions iterative method. The CFA and LSER results permitted to highlight that the retention indices were appropriate for studying the second-order retention mechanisms on the eight chromatographic systems investigated and exhibited the best reproducibility. Although many earlier studies have reported the use of chemometric methods to characterize chemical factors affecting retention in RPLC using retention factors as retention parameters, this is the first study based on retention indices.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85051861832&origin=inward; http://dx.doi.org/10.1007/s13738-018-1418-8; http://link.springer.com/10.1007/s13738-018-1418-8; http://link.springer.com/content/pdf/10.1007/s13738-018-1418-8.pdf; http://link.springer.com/article/10.1007/s13738-018-1418-8/fulltext.html; https://dx.doi.org/10.1007/s13738-018-1418-8; https://link.springer.com/article/10.1007/s13738-018-1418-8
Springer Science and Business Media LLC
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