Gas Chromatography In column switching chromatography any of the above one column is removed and replaced by another the flow to the column is switched on and off repeatedly compounds trapped on one column are eluted to another column any of the above one column is removed and replaced by another the flow to the column is switched on and off repeatedly compounds trapped on one column are eluted to another column ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Headspace analysis is carried out in order to analyse volatile compounds from solid or liquid samples determine the psychological state of the tutor analyse the column contents ahead of the sample determine non-volatiles analyse volatile compounds from solid or liquid samples determine the psychological state of the tutor analyse the column contents ahead of the sample determine non-volatiles ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography What does the selectivity factor describe? The proportional difference in widths of two chromatographic peaks The relative separation achieved between two species The maximum number of different species which a column can separate simultaneously None of these The proportional difference in widths of two chromatographic peaks The relative separation achieved between two species The maximum number of different species which a column can separate simultaneously None of these ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Sample retention in the column is measured by retention index all of these retention factor retention time retention index all of these retention factor retention time ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography The column is heated to prevent analyte condensation within the column all of these reduce band broadening to get sharper peaks control elution of the different analytes prevent analyte condensation within the column all of these reduce band broadening to get sharper peaks control elution of the different analytes ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography The GC trace obtained after an experiment is called a chromatograph chromatophore graph chromatogram chromatograph chromatophore graph chromatogram ANSWER DOWNLOAD EXAMIANS APP
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