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Fresenius' Journal of Analytical Chemistry

, Volume 365, Issue 4, pp 305–309 | Cite as

New applications of the retention index concept in gas and high performance liquid chromatography

  • I. G. Zenkevich
Original paper

Abstract

New methods for the precalculation of GC retention indices (RIs) are discussed. The first is based on a new modification of the correlation equation log RI = a logTb + bA + c and is recommended for low boiling compounds of the general type R-X with known boiling points (Tb) analyzed on polymer sorbent Porapack Q. The second method permits one to predict RIs of products of organic reactions A + B → C +… with the correlation ΔRI = a ΔE + b (a < 0,|ρ| > 0.9), where ΔRI = RIC– RIA– RIB and ΔE = EC– EA– EB– are the differences in the internal molecular energies of reagents and products of organic reactions which are estimated by molecular dynamics methods. In the final section new possibilities of the use of RIs in reversed phase HPLC, namely for the determination of the number of hydroxyl groups in phenols, are illustrated.

Keywords

Molecular Dynamic Boiling Boiling Point General Type Retention Index 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1999

Authors and Affiliations

  • I. G. Zenkevich
    • 1
  1. 1.Chemical Research Institute of St. Petersburg State University, Universitetsky pr. 2, St. Petersburg 198904, Russia and Chemical Pharmaceutical Academy, Prof. Popov str., St. Petersburg 197376, RussiaRU

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