计算了44个烷基苯酚类化合物的组成、拓扑、几何、静电和量子化学等结构参数,运用启发式方法对这些结构参数进行筛选,得到了含3个变量的化合物的定量结构与色谱保留值的线性关系模型,同时以这3个变量作为支持向量机模型的输入变量建立非线性回归模型.两种方法的相关系数(R2)分别为0.98和0.92,相应的均方根误差分别是0.99和2.77.通过对两种模型的稳定性和预测能力的比较,发现线性模型能够更好地反映烷基苯酚的气相色谱保留值与其结构参数之间的定量关系.在已知烷基苯酚类化合物结构参数的情况下,线性回归模型更有助于它们的色谱分析.
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