Gas Chromatography Column bleeding occurs when 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 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 ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Doubling the column's length increases resolution by a factor of 4 3 (2)0.5 2 4 3 (2)0.5 2 ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Sample injection is considered successful if the sample is homogenously spread along the column all of the sample in the injector has been added to the column the sample is concentrated at the start of the column the sample is spread evenly along 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 concentrated at the start of the column the sample is spread evenly along the column ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Which of the following are not used as stationary phases in a GC column? Silica None are used as stationary phases Polysiloxanes Cyclodextrins Silica None are used as stationary phases Polysiloxanes Cyclodextrins ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography What does the selectivity factor describe? None of these The relative separation achieved between two species The proportional difference in widths of two chromatographic peaks The maximum number of different species which a column can separate simultaneously None of these The relative separation achieved between two species The proportional difference in widths of two chromatographic peaks The maximum number of different species which a column can separate simultaneously ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Theoretical plates are used to 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 determine the thickness of the stationary phase None of these ANSWER DOWNLOAD EXAMIANS APP
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