Unified equation between Kováts indices on different stationary phases for select types of compounds

For homologous series and their branched-chain isomers, in plots of retention indices of one phase vs. those of another phase of different selectivity, the scattered data points form a series of parallel cluster lines, on which isomers containing the same carbon numbers are always located, and compounds with different numbers of methylene groups are found on different lines. The so-called isomer cluster phenomena have been observed for a variety of monofunctional and some multi-functional compounds. A retention equation to describe the new retention phenomena was derived based on the assumption of a constant molar volume of a solute when the intermolecular interactions take place on different stationary phases. Also, the equation can readily be applied to predict retention indices from one phase to others. Over 1000 retention indices on various stationary phases have been predicted with relative higher accuracy, and parts of the results are presented in this paper.

[1]  P. Jurs,et al.  Prediction of gas chromatographic retention indexes for diverse drug compounds. , 1988, Analytical chemistry.

[2]  J. J. Brooks,et al.  Mathematical modeling of temperature programmed capillary gas chromatographic retention indexes for polychlorinated dibenzofurans , 1985 .

[3]  A. Robbat,et al.  Multivariate relationships between gas chromatographic retention index and molecular connectivity of mononitrated polycyclic aromatic hydrocarbons , 1986 .

[4]  T. Tóth.  Use of capillary gas chromatography in collecting retention and chemical information for the analysis of complex petrochemical mixtures , 1983 .

[5]  H. Zou,et al.  The retention equation in reversed-phase ion-pair chromatography , 1990 .

[6]  G. Tarján,et al.  Twenty-fifth anniversary of the retention index system in gas—liquid chromatography , 1983 .

[7]  Lu Xiaoming,et al.  Development of a high-performance liquid chromatograph with artificial intelligence , 1984 .

[8]  P. Carr,et al.  Gas chromatographic study of salvation enthalpy by solvatochromically based linear salvation energy relationships , 1994 .

[9]  N. Davies.  Gas chromatographic retention indices of monoterpenes and sesquiterpenes on methyl silicon and Carbowax 20M phases , 1990 .

[10]  L. Blomberg,et al.  Some factors affecting the precision in the determination of retention indices on polar capillary columns for gas chromatography , 1989 .

[11]  C. Peng.  Retrieval of structure information from retention index. , 1994, Journal of chromatography. A.

[12]  N. C. Saha,et al.  Determination of Retention Indices of Saturated Hydrocarbons by Graphical Methods , 1970 .

[13]  A. Robbat,et al.  Prediction of gas chromatographic retention indexes for polychlorinated dibenzofurans. , 1990, Analytical chemistry.

[14]  Peter C. Jurs,et al.  Prediction of gas chromatographic retention indexes of selected olefins , 1985 .

[15]  A. J. Lubeck,et al.  Kovats retention indices of selected hydrocarbons through C10 on bonded phase fused silica capillaries , 1983 .

[16]  P. Jurs,et al.  Quantitative structure-retention relationship studies of odor-active aliphatic compounds with oxygen-containing functional groups. , 1990, Analytical chemistry.

[17]  C. M. White,et al.  Linear temperature programmed retention indices of gasoline range hydrocarbons and chlorinated hydrocarbons on cross‐linked polydimethylsiloxane , 1992 .

[18]  J. K. Haken,et al.  Gas chromatography of homologous esters : VI. Strucgure—retention increments of aliphatic esters , 1974 .

[19]  Lionel A. Carreira,et al.  Estimation of gas-liquid chromatographic retention times from molecular structure , 1994 .

[20]  A. Yasuhara,et al.  Temperature-programmed retention indices of 221 halogenated organic compounds with 1-bromoalkanes as references , 1985 .

[21]  Relationship between gas chromatographic retention indices and molecular connectivity indices of chlorinated pesticides and structurally related compounds , 1992 .

[22]  G. Tarján,et al.  Thirtieth anniversary of the retention index according to Kováts in gas-liquid chromatography , 1989 .

[23]  M. B. Evans,et al.  Recent developments in the gas chromatographic retention index scheme , 1989 .