在分析型线性色谱中，流出曲线一般表现为拖尾的形式，这种现象可以采用多种机理加以解释。模仿动力学弛豫理论的假设条件，认为溶质在柱过程中的迁移以跃迁形式完成，得到了浓度分布曲线的数学表达式。分别探讨跃迁次数、两相间跃迁速率及溶质在流动相中的轴向跃迁对峰形的影响，进一步说明了色谱流出曲线的动力学本质 In analytical linear chromatography, the outflow curve generally appears as a trailing form, a phenomenon that can be explained by a variety of mechanisms. Mimicking the hypothesis of kinetic relaxation theory, we consider that the migration of solute in the column process is completed in the form of transition, and the mathematical expression of the concentration distribution curve is obtained. The effects of the number of transitions, the rate of transition between two phases and the axial transition of solutes in the mobile phase on the peak shapes were discussed respectively, further illustrating the kinetic nature of the chromatographic outflow curves