Gas Chromatography The GC trace obtained after an experiment is called a graph chromatogram chromatophore chromatograph graph chromatogram chromatophore chromatograph ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Which of the following are not used as stationary phases in a GC column? Polysiloxanes Silica None are used as stationary phases Cyclodextrins Polysiloxanes Silica None are used as stationary phases Cyclodextrins ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Theoretical plates are used to None of these determine the thickness of the stationary phase measure the distribution of the analyte between mobile and stationary phases estimate the efficiency of a column None of these determine the thickness of the stationary phase measure the distribution of the analyte between mobile and stationary phases estimate the efficiency of a column ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography What is the typical internal diameter of fused silica capillary columns? 0.2-0.3 mm 0.5-1.0 mm 0.3-0.5mm 1.0-2.0 mm 0.2-0.3 mm 0.5-1.0 mm 0.3-0.5mm 1.0-2.0 mm ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Which of the following is not used for detection in GC? Electrical conductivity NMR Infrared spectroscopy Flame ionisation Electrical conductivity NMR Infrared spectroscopy Flame ionisation ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography What does the retention factor, k', describe? The migration rate of an analyte through a column All of these The distribution of an analyte between the stationary and the mobile phase The velocity of the mobile phase The migration rate of an analyte through a column All of these The distribution of an analyte between the stationary and the mobile phase The velocity of the mobile phase ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS