Gas Chromatography Which of the following detectors give mass flow-dependent signals? All of these Thermal conductivity detector Electron capture detector Field ionisation detector All of these Thermal conductivity detector Electron capture detector Field ionisation detector ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography What useful information can be found from a Van Deemter plot? Optimum mobile phase flow rate The selectivity factor Optimum column temperature Optimum column length Optimum mobile phase flow rate The selectivity factor Optimum column temperature Optimum column length ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Sample injection is considered successful if the sample is concentrated at the start of the column the sample is homogenously spread along the column all of the sample in the injector has been added to the column the sample is spread evenly along the column the sample is concentrated at the start of the column the sample is homogenously spread along the column all of the sample in the injector has been added to the column the sample is spread evenly along the column ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Which of the statements is correct? Gas chromatography is used to analyse gases Gas chromatography is used to analyse gases, solutions and solids All of these Gas chromatography is used to analyse solids Gas chromatography is used to analyse gases Gas chromatography is used to analyse gases, solutions and solids All of these Gas chromatography is used to analyse solids ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Sample retention in the column is measured by retention time retention index retention factor all of these retention time retention index retention factor all of these ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography What does the retention factor, k', describe? The distribution of an analyte between the stationary and the mobile phase The velocity of the mobile phase All of these The migration rate of an analyte through a column The distribution of an analyte between the stationary and the mobile phase The velocity of the mobile phase All of these The migration rate of an analyte through a column ANSWER DOWNLOAD EXAMIANS APP
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