Gas Chromatography Headspace analysis is carried out in order to 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 determine the psychological state of the tutor analyse volatile compounds from solid or liquid samples ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Sample retention in the column is measured by all of these retention time retention index retention factor all of these retention time retention index retention factor ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Which of the following is not used for detection in GC? Electrical conductivity Infrared spectroscopy NMR Flame ionisation Electrical conductivity Infrared spectroscopy NMR Flame ionisation ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Which of the statements is correct? All of these Gas chromatography is used to analyse gases Gas chromatography is used to analyse gases, solutions and solids Gas chromatography is used to analyse solids All of these Gas chromatography is used to analyse gases Gas chromatography is used to analyse gases, solutions and solids Gas chromatography is used to analyse solids ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Theoretical plates are used to measure the distribution of the analyte between mobile and stationary phases determine the thickness of the stationary phase estimate the efficiency of a column None of these measure the distribution of the analyte between mobile and stationary phases determine the thickness of the stationary phase estimate the efficiency of a column None of these ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography What does the retention factor, k', describe? The distribution of an analyte between the stationary and the mobile phase The migration rate of an analyte through a column All of these The velocity of the mobile phase The distribution of an analyte between the stationary and the mobile phase The migration rate of an analyte through a column All of these The velocity of the mobile phase ANSWER DOWNLOAD EXAMIANS APP
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