過渡応答法による超臨界流体中の化合物の拡散係数の測定および溶解度と部分モル体積の推算

抄録

The transient response method, such as the Taylor dispersion and chromatographic impulse response (CIR) methods, is a useful tool to measure diffusion coefficients in supercritical fluids. However, the Taylor dispersion method sometimes leads to erroneous results for polar solutes. As compared with diffusion coefficients of vitamin K₃ measured by the Taylor dispersion and CIR methods, the superiority of the CIR method to the Taylor dispersion method is demonstrated. Moreover, the partial molar volume and solubility were estimated from the retention factors of a solute in the CIR method.