Gas Chromatography Helium is generally preferred as carrier gas over nitrogen and hydrogen because it has a lower viscosity all of above it doubles up as a party gas for balloons and funny voices it is inert it has a lower viscosity all of above it doubles up as a party gas for balloons and funny voices it is inert ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Resolution is proportional to the cube root of the number of theoretical plates in a column square of the number of theoretical plates in a column square root of the number of theoretical plates in a column number of theoretical plates in a column cube root of the number of theoretical plates in a column square of the number of theoretical plates in a column square root of the number of theoretical plates in a column number of theoretical plates in a column ANSWER DOWNLOAD EXAMIANS APP
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? None of these The proportional difference in widths of two chromatographic peaks The relative separation achieved between two species The maximum number of different species which a column can separate simultaneously None of these The proportional difference in widths of two chromatographic peaks The relative separation achieved between two species The maximum number of different species which a column can separate simultaneously ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography What useful information can be found from a Van Deemter plot? Optimum mobile phase flow rate Optimum column length Optimum column temperature The selectivity factor Optimum mobile phase flow rate Optimum column length Optimum column temperature The selectivity factor ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Theoretical plates are used to None of these estimate the efficiency of a column measure the distribution of the analyte between mobile and stationary phases determine the thickness of the stationary phase None of these estimate the efficiency of a column measure the distribution of the analyte between mobile and stationary phases determine the thickness of the stationary phase ANSWER DOWNLOAD EXAMIANS APP
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