一种新的连接性指数被定义为：mQ=∑(ti*tj*tk*…）-0.5，其中的0Q，3Q与22种胺类化合物在3种固定相（OV-101,OV-225和NGA）下的Kováts指数(I)显著相关。它们的线性方程如下：IOV-101=118.341+197.854×0Q+448.773×3Q，r=0.973*!3；IOV-225=249.218+1 815.760×3Q+343.222×1Q，r=0.974 6；INGA=382.196+2 004.277×3Q+318.416×1Q，r=0.973 4。这些模型较好地解释了胺类化合物Kováts指数的递变规律，并用Jackknife方法对模型的稳健性进行了检验。
A novel connectivity index（mQ） is defined as mQ=∑(ti*tj*tk*…）-0．5 in this paper． 0Q and 3Q have very good correlation for Kováts indices of 22 amines on three stationary phases（OV-101,OV-225 and NGA）．Their linear regression equations are proposed as follows：IOV-101=118.341+197.854×0Q+448.773×3Q， r=0.973 3； IOV-225=249.218+1 815.760×3Q+343.222×1Q， r=0.974 6； INGA=382.196+2 004.277×3Q+318.416×1Q， r=0.973 4. These models can better elucidate the change rule of Kováts indices for the amines． Furthermore, a modified Jackknife's test was performed to validate the model robustness.
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