Gas Chromatography Doubling the column's length increases resolution by a factor of 2 (2)0.5 4 3 2 (2)0.5 4 3 ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography What does the selectivity factor describe? The proportional difference in widths of two chromatographic peaks The maximum number of different species which a column can separate simultaneously The relative separation achieved between two species None of these The proportional difference in widths of two chromatographic peaks The maximum number of different species which a column can separate simultaneously The relative separation achieved between two species None of these ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Which of the following is not used for detection in GC? Infrared spectroscopy Electrical conductivity NMR Flame ionisation Infrared spectroscopy Electrical conductivity NMR Flame ionisation ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Theoretical plates are used to estimate the efficiency of a column determine the thickness of the stationary phase measure the distribution of the analyte between mobile and stationary phases None of these estimate the efficiency of a column determine the thickness of the stationary phase measure the distribution of the analyte between mobile and stationary phases None of these ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Which of the following gases is unsuitable for use as a GC carrier gas? Nitrogen Oxygen Helium All of these Nitrogen Oxygen Helium All of these ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography What is the typical internal diameter of fused silica capillary columns? 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 0.2-0.3 mm ANSWER DOWNLOAD EXAMIANS APP
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