✍ Scribed by Gyula Oros; Tibor Cserháti
No coin nor oath required. For personal study only.
The quantitative relationship between the TLC retention parameters of 28 short peptides and their physicochemical characteristics was calculated using linear regression analysis. It was established that surface parameters exert a significant impact on the retention of peptides and the ratio of non‐polar surface area/polar surface area exerts the highest influence on the retention. This result may be due to the fact that peptides turn towards the apolar surface of the stationary phase with their non‐polar substructures while the polar molecular parts point into the hydrophilic mobile phase.
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The retention of 7 monotetrazolium and 9 ditetrazolium salts was determined on alumina and reversed-phase (RP) alumina layers using n-hexane-2-propanol and water-2-propanol mixtures as eluents. The retention capacity and the specific surface area of solutes in contact with the stationary phases were
## Abstract The natural product curcumin is widely used in Asian countries for the treatment of several diseases. However, the clinical potential of curcumins remains limited due to their relatively poor bioavailability and no experimental data about their lipophilicity for bioavailability predicti
Two types of models are postulated for deriving linear quantitative retention-structure models in gas chromatography (GC). They were tested by using GC retention indices for a series of 41 alkylbenzenes and 34 physico-chemical (e.g., boiling point) and calculable (topological, steric and electronic)