期刊论文

Nie, C.

中文

色谱

1000-8713

2005

23

1

1-6

10.3321/j.issn:1000-8713.2005.01.001

湖南省自然科学基金资助项目（03JJY3024）； 湖南省教育厅重点课题资助项目（JY02A045）.；

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定义了分子中原子的平衡电负性,并用原子的平衡电负性对分子图进行着色,在距离矩阵的基础上结合分子中各原子的支化度构建了一种新的拓扑指数N1,N2和N3.该拓扑指数对分子结构实现惟一性表征,具有优良的结构选择性.将拓扑指数N1,N2和N3与烷烃在固定相角鲨烷(柱温50℃)及SE-30(柱温80℃)上的气相色谱保留指数进行多元线性回归,结果表明烷烃的气相色谱保留指数可分别定量描述为I(Squalane)=23.978 42N1-3.865 62N2+0.787 379N3+42.330 61,I(SE-30)=23.839 37N1-3.568 7N2+0.939 876N3+22.119 52.用上述回归方程对烷烃的气相色谱保留指数进行预测,结果表明预测值与实验值的平均相对误差均为1.31%,预...

The gas chromatographic retention indices can be used to qualify some organic compounds. A new topological index based on distance matrix and branch vertex of the atoms in a molecule is proposed by defining equilibrium electronegativity of atoms in the molecule and coloring atoms in the molecular graph with equilibrium electronegativity, which appears unique to the molecular structures and has excellent structural selectivity. The multivariate linear equations of gas chromatographic retention indices are as follows: I(Squalane) =23.978 42N1 -3....