Gas Chromatography The column is heated to all of these reduce band broadening to get sharper peaks prevent analyte condensation within the column control elution of the different analytes all of these reduce band broadening to get sharper peaks prevent analyte condensation within the column control elution of the different analytes ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Theoretical plates are used to determine the thickness of the stationary phase estimate the efficiency of a column measure the distribution of the analyte between mobile and stationary phases None of these determine the thickness of the stationary phase estimate the efficiency of a column measure the distribution of the analyte between mobile and stationary phases None of these ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Helium is generally preferred as carrier gas over nitrogen and hydrogen because it doubles up as a party gas for balloons and funny voices all of above it has a lower viscosity it is inert it doubles up as a party gas for balloons and funny voices all of above it has a lower viscosity it is inert ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Split injection is carried out by splitting the sample into smaller portions to inject sequentially splitting the sample into smaller portions to inject at the same time through parallel ports splitting off some of the sample so that it does not enter the column None of these splitting the sample into smaller portions to inject sequentially splitting the sample into smaller portions to inject at the same time through parallel ports splitting off some of the sample so that it does not enter the column None of these ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography In column switching chromatography any of the above one column is removed and replaced by another compounds trapped on one column are eluted to another column the flow to the column is switched on and off repeatedly any of the above one column is removed and replaced by another compounds trapped on one column are eluted to another column the flow to the column is switched on and off repeatedly ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Which of the following are not used as stationary phases in a GC column? Polysiloxanes Silica Cyclodextrins None are used as stationary phases Polysiloxanes Silica Cyclodextrins None are used as stationary phases ANSWER DOWNLOAD EXAMIANS APP
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