Gas Chromatography Resolution is proportional to the number of theoretical plates in a column square root of the number of theoretical plates in a column cube root of the number of theoretical plates in a column square of the number of theoretical plates in a column number of theoretical plates in a column square root of the number of theoretical plates in a column cube root of the number of theoretical plates in a column square of the number of theoretical plates in a column ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Headspace analysis is carried out in order to analyse volatile compounds from solid or liquid samples determine non-volatiles analyse the column contents ahead of the sample determine the psychological state of the tutor analyse volatile compounds from solid or liquid samples determine non-volatiles 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 None of these The maximum number of different species which a column can separate simultaneously The relative separation achieved between two species The proportional difference in widths of two chromatographic peaks None of these The maximum number of different species which a column can separate simultaneously The relative separation achieved between two species ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Which of the following is not used for detection in GC? NMR Electrical conductivity Flame ionisation Infrared spectroscopy NMR Electrical conductivity Flame ionisation Infrared spectroscopy ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography What is the typical internal diameter of fused silica capillary columns? 0.2-0.3 mm 0.3-0.5mm 0.5-1.0 mm 1.0-2.0 mm 0.2-0.3 mm 0.3-0.5mm 0.5-1.0 mm 1.0-2.0 mm ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography What does the retention factor, k', describe? The velocity of the mobile phase All of these The distribution of an analyte between the stationary and the mobile phase The migration rate of an analyte through a column The velocity of the mobile phase All of these The distribution of an analyte between the stationary and the mobile phase The migration rate of an analyte through a column ANSWER DOWNLOAD EXAMIANS APP
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