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The influence of carrier gas pressure on the retention factor k′ of light hydrocarbons C 1 –C 4 in a monolithic capillary column based on divinylbenzene was studied. It was shown that, for monolithic columns and nonideal carrier gases, the pressure dependence of ln k′ was nonlinear over a wide pressure range and could be described by the classic Everett equation. It was concluded that the competitive adsorption model failed to describe the experimental data correctly, especially for strongly retained sorbates and/or heavy carrier gases.
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Королев et al. (2009) studied this question.
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