DISCRIMINATION BETWEEN LINEAR AND NONLINEAR MODELS DESCRIBING RETENTION DATA OF ALKYLBENZENES IN GAS-CHROMATOGRAPHY

被引：45

作者：

HEBERGER, K ^{[1
]}

机构：

[1] MAX PLANCK INST STROMUNGSFORSCH,W-3400 GOTTINGEN,GERMANY

来源：

CHROMATOGRAPHIA | 1990年 / 29卷 / 7-8期

关键词：

Alkylaromatics; Gas-chromatography; Kováts retention index; Quantitative structure-retention relationships;

D O I：

10.1007/BF02261306

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Detailed statistical analysis is presented to describe the retention indices of alkylbenzenes as a function of their physical (boiling point, modrefraction) and topological (connectivity and complexity indices) properties. With the help of several statistical characteristics (examination of residuals, F test, partial F test, termination criteria, correlation indices) a discrimination is made among different models. A nonlinear equation was chosen which describes the retention data on slightly polar phases with the practically attainable precision. A comparison with literature sources shows that this equation provides the smallest residual error and, hence, it can be applied for prediction purposes. A correlation was found between the preexponential factor in the simple exponential model and the polarity of stationary phases on the Tarján scale. © 1990 Friedr. Vieweg & Sohn Verlagsgesellschaft mbH.

引用

页码：375 / 384

页数：10

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