Gas Chromatography What is the typical internal diameter of fused silica capillary columns? 0.5-1.0 mm 0.3-0.5mm 1.0-2.0 mm 0.2-0.3 mm 0.5-1.0 mm 0.3-0.5mm 1.0-2.0 mm 0.2-0.3 mm ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography What are the benefits of decreasing the column internal diameter? Increased sample capacity Increased resolution All of these Reduced risk of column overloading Increased sample capacity Increased resolution All of these Reduced risk of column overloading ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Split injection is carried out by splitting the sample into smaller portions to inject sequentially None of these splitting off some of the sample so that it does not enter the column splitting the sample into smaller portions to inject at the same time through parallel ports splitting the sample into smaller portions to inject sequentially None of these splitting off some of the sample so that it does not enter the column splitting the sample into smaller portions to inject at the same time through parallel ports ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography What does the retention factor, k', describe? The migration rate of an analyte through a column The distribution of an analyte between the stationary and the mobile phase All of these The velocity of the mobile phase The migration rate of an analyte through a column The distribution of an analyte between the stationary and the mobile phase All of these The velocity of the mobile phase ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Headspace analysis is carried out in order to determine the psychological state of the tutor analyse volatile compounds from solid or liquid samples analyse the column contents ahead of the sample determine non-volatiles determine the psychological state of the tutor analyse volatile compounds from solid or liquid samples analyse the column contents ahead of the sample determine non-volatiles 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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