Gas Chromatography Column bleeding occurs when the column breaks during installation and causes personal injury the column is cracked and stationary phase leaks out traces of the stationary phase are eluted elution of the analyte is extended over time the column breaks during installation and causes personal injury the column is cracked and stationary phase leaks out traces of the stationary phase are eluted elution of the analyte is extended over time ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Headspace analysis is carried out in order to determine non-volatiles analyse volatile compounds from solid or liquid samples analyse the column contents ahead of the sample determine the psychological state of the tutor determine non-volatiles analyse volatile compounds from solid or liquid samples analyse the column contents ahead of the sample determine the psychological state of the tutor ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography What does the selectivity factor describe? The proportional difference in widths of two chromatographic peaks The relative separation achieved between two species None of these The maximum number of different species which a column can separate simultaneously The proportional difference in widths of two chromatographic peaks The relative separation achieved between two species None of these The maximum number of different species which a column can separate simultaneously ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography The column is heated to all of these prevent analyte condensation within the column control elution of the different analytes reduce band broadening to get sharper peaks all of these prevent analyte condensation within the column control elution of the different analytes reduce band broadening to get sharper peaks 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 Decreased resolution Constant resolution Increased resolution Non-linear detector response Decreased resolution Constant resolution ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography What useful information can be found from a Van Deemter plot? Optimum column temperature The selectivity factor Optimum mobile phase flow rate Optimum column length Optimum column temperature The selectivity factor Optimum mobile phase flow rate Optimum column length ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS