Abstract
RM-solvent composition relationships were investigated for pyridine, quinoline and aniline derivatives with two groups capable of adsorption on silica. Linear RM(log XS) relationships were obtained in wide composition ranges, the slope of the lines informing about the mechanism of adsorption. Conditions for two-point adsorption of the solutes were formulated, the following parameters being discussed: adsorption energies of the two groups, elution strength of the polar solvent, molecular structure of the solute. For donor-acceptor solutes some indications of solvation effects in the solution phase were observed. Practical conclusions concerning the selectivity of TLC separations of solutes possessing two functional groups are given.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
