至今对15个稀土元素一次进柱梯度淋洗,连续分离时,尚无求测体系色谱参数的方法。为了从理论上来衡量对体系选择的优劣,本文提出了用校正保留体积的办法,达到求测其参数的目的,论证了用校正过的保留体积来计算两相邻元素在梯度淋洗时的β′、Rs、N′、H′等参数是合理的,是符合实验事实的。 To date, 15 rare earth elements into the column gradient elution, continuous separation, there is no way to measure the system chromatographic parameters. In order to theoretically measure the pros and cons of system selection, this paper presents the purpose of determining the parameters by using the method of preserving the volume, and verifies that the corrected retention volume can be used to calculate the volume of two adjacent elements β ’, Rs, N’, H ’and other parameters is reasonable, is consistent with experimental facts.