Gas Chromatography Doubling the column's length increases resolution by a factor of 3 2 (2)0.5 4 3 2 (2)0.5 4 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 None of these The relative separation achieved between two species The proportional difference in widths of two chromatographic peaks The maximum number of different species which a column can separate simultaneously None of these The relative separation achieved between two species ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography What are the benefits of decreasing the column internal diameter? Increased sample capacity Reduced risk of column overloading All of these Increased resolution Increased sample capacity Reduced risk of column overloading All of these Increased resolution ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Theoretical plates are used to 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 None of these determine the thickness of the stationary phase measure the distribution of the analyte between mobile and stationary phases ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Which of the following is not used for detection in GC? NMR Flame ionisation Infrared spectroscopy Electrical conductivity NMR Flame ionisation Infrared spectroscopy Electrical conductivity ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Which of the following detectors give mass flow-dependent signals? Thermal conductivity detector All of these Field ionisation detector Electron capture detector Thermal conductivity detector All of these Field ionisation detector Electron capture detector ANSWER DOWNLOAD EXAMIANS APP
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