Application of moment analysis to mass transfer kinetics of reversed-phase liquid chromatography: 2. A new understanding of the external mass transfer coefficient.
The second and third moments measured in the first part of this work are analyzed, combined with the moment equations deduced from the general rate model. A new understanding of the external mass transfer coefficient is obtained (i.e., the external mass transfer coefficient is linearly velocity dependent and then contributes to the intercept of the regression line of μ₂μ₀² ∼ μ₀). And the mass transfer parameters involved in the general rate model are also determined and discussed.
Gao
Hong
H
School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning, 116024, China.
Wu
Xiuhong
X
Lin
Bingchang
B