ISSN:
1612-1112
Keywords:
Thin-layer chromatography
;
Chromatographic theory
;
Adsorption
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Summary Using adsorption TLC RM values were measured for a number of aromatic compounds on aluminium oxide and silica gels having different specific surface areas, using the following binary mobile phases: benzene+toluene, benzene+carbon tetrachloride and chloroform+carbon tetrachloride. The results are graphically presented and compared with theoretically calculated values. Generally, a good agreement was found between the calculated and measured RM values. The agreement is valid both when the RM values were calculated using experimentally (indirectly) determined partition coefficients or when the coefficients are obtained with help of Ościk's equation [cf. Roczn. Chem.34, 745 (1960) and Chromatographia4, 516 (1971)]. One can assume that in the case of systems in which strong intermolecular interactions are absent, the statically determined partition coefficients of the compounds may be used for the calculation of their RM values.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02263063
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