The solubility of the phenolic in the solvent divided by that in water is called the distribution coefficient, and it is clear that for an efficient extraction process it is desirable to have as large a distribution coefficient as possible.
The logarithmic plot (log of sulfur concentration in gasoline versus the number of extraction steps), shown as inset in Fig. 2, indicated that the extraction was controlled by a constant distribution coefficient according to Nernst's law.
Therefore, the authors of this study argued that the low bioavailability of procaine might be caused by a lower distribution coefficient.
In the present three-compartment model oil-aqueous phase distribution equilibrium was maintained at all times in the donor phase and thus drug efflux from the donor compartment was dictated by the distribution coefficient.
This manuscript addresses the consequences of the common practice of assuming that the gravel fraction of sediments does not participate in sorption reactions and thus sorption quantified by the distribution coefficient (Kd) construct can be estimated from laboratory tests on sediments less than 2 mm size fraction.
The analysis of the removal/rebound cycles demonstrated that removal rate was controlled by the organic aqueous distribution coefficient Koc.
8-Hydroxyquinoline is amphoteric in aqueous solution, having both a basic nitrogen atom and a phenolic hydroxyl group; at pH < 5 and pH > 9 it is completely extracted from aqueous solution by chloroform; the distribution coefficient of the neutral compound between chloroform and water is 720 at 18 °C (Jeffery et al. 1989).
Selectivity studies of modified and unmodified DEAE cellulose adsorbents toward different metal ions, including Cd II), Co II), Cu II),Cr III), Cr VI), Fe III), Ni II), and Zn II), were investigated by determining the distribution coefficient of all the phases at optimum pH value (pH 6.0).
We have shown that if a given frequency of the TAG stop codon is explained by a distribution of selection coefficients then the expected value of the average selection of such a distribution would have to be greater or equal to a selection coefficient that is uniform across all TAG codons and leads to the same TAG frequency in the genome (see Methods).
This was caused by the increasing difficulty of P release from labile solid P pool with time, which was reflected by the increases in distribution coefficient of P between the solid pool and pore water (Kd) and the adsorption rate constant (k1).
