Gas Chromatography What useful information can be found from a Van Deemter plot? Optimum column temperature The selectivity factor Optimum column length Optimum mobile phase flow rate Optimum column temperature The selectivity factor Optimum column length Optimum mobile phase flow rate ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Which of the following is not used for detection in GC? NMR Infrared spectroscopy Electrical conductivity Flame ionisation NMR Infrared spectroscopy Electrical conductivity Flame ionisation ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography In column switching chromatography one column is removed and replaced by another compounds trapped on one column are eluted to another column any of the above the flow to the column is switched on and off repeatedly one column is removed and replaced by another compounds trapped on one column are eluted to another column any of the above the flow to the column is switched on and off repeatedly ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Which of these effects result from slow injection of a large sample volume? Decreased resolution Non-linear detector response Increased resolution Constant resolution Decreased resolution Non-linear detector response Increased resolution Constant resolution 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 Doubling the column's length increases resolution by a factor of (2)0.5 3 2 4 (2)0.5 3 2 4 ANSWER DOWNLOAD EXAMIANS APP
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