以流体机械能守恒定律为依据,建立了流动相在液相色谱系统中的流体动力学模型P=k1+k2 qu,并以典型的液相色谱系统证明了其正确性,即流动相的体积流量和其在色谱流动系统中产生的压强降为线性关系,而流动相的粘度对压强的影响表现在系数k2上的不同,粘度增加,k2值增大.此研究为高效液相色谱分析中色谱柱、流动相及其体积流量的优化选择及辅助系统的设置提供了理论依据和指导.
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