Gas Chromatography Sample retention in the column is measured by retention index retention time retention factor all of these retention index retention time retention factor all of these ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography The GC trace obtained after an experiment is called a graph chromatogram chromatograph chromatophore graph chromatogram chromatograph chromatophore ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Which of the following detectors give concentration-dependent signals? Thermal conductivity Infra-red detector Electron-capture detector All of these Thermal conductivity Infra-red detector Electron-capture detector All of these ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Which of these effects result from slow injection of a large sample volume? Increased resolution Non-linear detector response Constant resolution Decreased resolution Increased resolution Non-linear detector response Constant resolution Decreased resolution 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 What useful information can be found from a Van Deemter plot? Optimum column length Optimum mobile phase flow rate Optimum column temperature The selectivity factor Optimum column length Optimum mobile phase flow rate Optimum column temperature The selectivity factor ANSWER DOWNLOAD EXAMIANS APP
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