Gas Chromatography Which of the statements is correct? Gas chromatography is used to analyse gases, solutions and solids All of these Gas chromatography is used to analyse gases Gas chromatography is used to analyse solids Gas chromatography is used to analyse gases, solutions and solids All of these Gas chromatography is used to analyse gases Gas chromatography is used to analyse solids ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Sample retention in the column is measured by retention index retention time all of these retention factor retention index retention time all of these retention factor ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography What does the retention factor, k', describe? The migration rate of an analyte through a column All of these The distribution of an analyte between the stationary and the mobile phase The velocity of the mobile phase The migration rate of an analyte through a column All of these The distribution of an analyte between the stationary and the mobile phase The velocity of the mobile phase ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Which of these effects result from slow injection of a large sample volume? Constant resolution Decreased resolution Increased resolution Non-linear detector response Constant resolution Decreased resolution Increased resolution Non-linear detector response ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Theoretical plates are used to 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 estimate the efficiency of a column ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Which of the following detectors give concentration-dependent signals? Thermal conductivity Electron-capture detector All of these Infra-red detector Thermal conductivity Electron-capture detector All of these Infra-red detector ANSWER DOWNLOAD EXAMIANS APP
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