改进GM(1,1)模型及其在色谱保留值研究中的应用

APPLICATION OF THE MODIFIED GREY MODEL GM(1,1) IN THE STUDY CHROMATOGRAPHIC RETENTION

针对常规GM（1，1）模型的两点不足，提出用迭代回归法加以改进，并用于多环芳烃容量因子随流动相组成变化关系的建模，获得了精度更高的拟合和预测结果。

The disadvantages of the traditional GM(1, 1) medel are discussed, and a modified GM(1, 1) model is proposed in this paper using iterative regression method. Good results are obtained with this modified model in the correlation and prediction of the capacity factors of polyaromatic hydrocarbons and the composition of the mobile phase.