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