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本文讨论了温度变化对分离多环芳烃用的硅胶—C_(18)/水—乙腈色谱系统的热力学分配特性的影响,求出了焓,并计算了熵的变化值。某些多环芳烃的洗脱序由于温度变化而反位,其原因主要是受熵效应的支配。
In this paper, the influence of temperature on the thermodynamic properties of silica-C 18 / water-acetonitrile chromatographic system for the separation of PAHs was discussed. The enthalpy was calculated and the change of entropy was calculated. Some polycyclic aromatic hydrocarbons elution sequence due to temperature changes and anti-bit, the reason is mainly dominated by the entropy effect.