Gas Chromatography Theoretical plates are used to estimate the efficiency of a column determine the thickness of the stationary phase None of these measure the distribution of the analyte between mobile and stationary phases estimate the efficiency of a column determine the thickness of the stationary phase None of these measure the distribution of the analyte between mobile and stationary phases ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography What does the selectivity factor describe? 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 The proportional difference in widths of two chromatographic peaks The maximum number of different species which a column can separate simultaneously ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Helium is generally preferred as carrier gas over nitrogen and hydrogen because all of above it is inert it has a lower viscosity it doubles up as a party gas for balloons and funny voices all of above it is inert it has a lower viscosity it doubles up as a party gas for balloons and funny voices ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography The column is heated to all of these control elution of the different analytes prevent analyte condensation within the column reduce band broadening to get sharper peaks all of these control elution of the different analytes prevent analyte condensation within the column reduce band broadening to get sharper peaks ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography What are the benefits of decreasing the column internal diameter? All of these Increased sample capacity Reduced risk of column overloading Increased resolution All of these Increased sample capacity Reduced risk of column overloading Increased resolution ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS