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Raouf Ghavami

Raouf Ghavami

Academic rank: Professor
ORCID:
Education: PhD.
ScopusId: 55408187000
HIndex:
Faculty: Faculty of Science
Address:
Phone: 08713393265

Research

Title
Investigation of retention behavior of polychlorinated biphenyl congeners on 18 different HRGC columns using molecular surface average local ionization energy descriptors
Type
JournalPaper
Keywords
Relative retention time, Polychlorinated biphenyl, Molecular surface electrostatic potentials, GIPF approach, Molecular surface average local ionization energy
Year
2012
Journal Journal of Chromatography A
DOI
Researchers Raouf Ghavami ، sepehri bakhtyar

Abstract

In this paper, based on the general interaction properties function (GIPF) family descriptors computed at the B3LYP/6-31G* level in Gaussian98 software, a significant quantitative structure–retention relationship (QSRR) models for the high resolution gas chromatographic relative retention time (HRGC-RRT) of all PCB congeners on 18 different HRGC capillary columns were constructed by using multiple linear regression (MLR) analysis, following the guidelines for development and validation of QSRR models. By means of the elimination selection stepwise regression algorithms, the molecular surface average local ionization energy was selected as one-parameter univariate linear regression to develop a QSRR model for prediction of GC-RRT of PCBs on each stationary phase. The accuracy of all developed models was confirmed using different types of internal and external procedures. A successful interpretation of the complex relationship between HRGC-RRTs of PCBs and the chemical structures was achieved by QSRR.