Osmotic Properties of Aqueous Solutions Containing Caffeine

Theoretical Considerations on Mononuclear Aggregations of Mixed Nucleosides in Dilute Aqueous Solutions Based upon Osmometric Measurements

“…The experimental results obtained seem to fit the previous treatment for caffeine and nucleosides (1)(2)(3). Two linear slopes can also be used to express all of the data obtained, with AR as the ordinate and molal concentration as the abscissa.…”

“…These critical concentrations were shifted to higher values on the molal scale of caffeine in the presence of a vehicle (1). When this increment in the critical concentration was divided by the vehicle concentration, a quotient approaching a simple integer was obtained.…”

“…EXPERIMENTAL Instrumentation-The vapor phase thermoelectric osmometer used was described previously (1,(6)(7)(8). The measured colligative property is expressed in terms of m, the difference between the resistances of the measuring thermistor when in contact with pure solvent and when in contact with the sample under study for a given molal concentration.…”

“…Standardization-The method was fully described previously (1)(2)(3). A value of 923.7 ohms/molal for the slope of the standard solution of sucrose is used for this work.…”

Interactions of nucleic acid bases with catechol: UV studies

“…Furthermore, Borazan (23), in explaining experimental results on complexation of the naturally occurring nucleosides and related compounds in dilute aqueous solutions (24)(25)(26)(27), pointed out that multiple consecutive equilibria possibly can exist. Thus, for similar systems, such as the present case, plots of Eq.…”