Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1205875 | Journal of Chromatography A | 2009 | 10 Pages |
Abstract
Experimental isothermal retention indices (I) at 348, 363, 378 and 393 K of 52 solutes of varied polarity on seven different poly(cyanopropylmethylsiloxane) stationary phases with cyanopropyl group percentages between 0% and 75% have been determined by a well-proven, accurate method. Some of these I values were obtained on new stationary phases with cyanopropyl percentages never used before. The influence of column temperature and polymer polarity on I was thoroughly investigated. Finally, retention models were developed relating I values to physicochemical and molecular properties by multiple linear regression. The best model of retention index prediction for the proposed cyanosilicones involves the Abraham's descriptors.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Ana María Tello, Rosa Lebrón-Aguilar, Jesús Eduardo Quintanilla-López, José María Santiuste,