Author(s): Kong CY, Siratori T, Wang G, Sako T, Funazukuri T
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Abstract Binary diffusion coefficients (D 12) and retention factors (k) of platinum(II) acetylacetonate at infinitesimal concentration in supercritical (sc) carbon dioxide (CO2) were measured by the chromatographic impulse response method with a poly(ethylene glycol) coated capillary column at temperatures from (308.15 to 343.15) K and pressures from (8.5 to 40.0) MPa, and D 12 in liquid ethanol at temperatures from (298.15 to 333.15) K and atmospheric pressure by the Taylor dispersion method. As has been seen for our previously reported data on other metal complexes measured in sc CO2 and organic solvents, the D 12 data in sc CO2 and liquid ethanol were represented by a function of temperature and solvent viscosity. The D 12 values for metal complexes were not related to the solute molecular weights. The k values in sc CO2 were expressed by a function of temperature and CO2 density.
This article was published in J Chem Eng Data
and referenced in Journal of Chromatography & Separation Techniques