Abstract

Abstract- The present study deals with the effect of temperature on the gas chromatographic behavior of some prepared P-cresol derivatives of azo dyes (4-MePAMP), (4-CPAMP), (4-OMePAMP), and (4-NPAMP) on fused silica (BP10), zebron (FFAT), and polysiloxane (OV-5) liquid stationary phases. The temperature increase is 10ºC depend on maximum operation temperature (MOT) of columns. In general, the researchers found that the specific retention volume (vgº) of p-cresol derivative compounds decreases by the increase of temperature of liquid stationary phases. The authors demonstrate thermodynamic data and calculate the separation factor (RS), number of theoretical plate (N), and highest equivalent of one theoretical plate (HETP) respectively. Keywords- gas chromatography, p-cresol derivatives, separation, liquid stationary phases, Temperature