Use of Rp-TLC and Theoretical Computational Methods to Compare the Lipophilicity of Salicylic Acid and Its Derivatives

Pyka, Alina; Rusek, Dominika; Bocheńska, Paulina; Gurak, D.

doi:10.1080/10826070903439309

Cited by 5 publications

(1 citation statement)

References 17 publications

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“…There have been dozens of papers published since the first part of our study. To mention only several examples, in reversed phase, methanol is used mainly as a modifier [3][4][5][6][7]; however, there are also studies done with acetone [8][9][10], acetonitrile and tetrahydrofurane [11][12][13] or dioxane [14]. Several new papers report use of micellar TLC [15][16] or even reversed phase thin-layer chromatography (RP-TLC) done on silica plates impregnated with oils or fats [17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Revisiting thin-layer chromatography as a lipophilicity determination tool. Part IV — A closer look on extrapolation and averaging

Komsta

Gowin

2014

Acta Chromatographica

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Summary. The paper compares linear, quadratic, and cubical regression together with several weighted and robust approaches in the context of lipophilicity determination. The comparison is done on 35 model compounds on data from different modifiers used on RP18, CN, and silica plates. It can be concluded that the use of weighted and moderately robust regression technique increases correlation between extrapolated retention and real lipophilicity, whereas polynomial and very robust techniques give visibly worse results due to their excessive flexibility and higher extrapolation uncertainty. Additionally, we have compared averaging retention from different modifiers by R F , k, and R M values. The results are similar; however, surprisingly, R F averaging performs slightly better to the other approaches.

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