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 gases is unsuitable for use as a GC carrier gas? Oxygen Helium Nitrogen All of these Oxygen Helium Nitrogen All 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 it has a lower viscosity all of above it is inert it doubles up as a party gas for balloons and funny voices it has a lower viscosity all of above it is inert ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Which of the statements is correct? All of these Gas chromatography is used to analyse gases, solutions and solids Gas chromatography is used to analyse gases Gas chromatography is used to analyse solids All of these Gas chromatography is used to analyse gases, solutions and solids Gas chromatography is used to analyse gases Gas chromatography is used to analyse solids ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography A retention gap is placed between the injector and the front of the column to All of these prevent backflush of the injected solution retain contaminants and prevent them from reaching the column retain the sample and release it gradually to the column All of these prevent backflush of the injected solution retain contaminants and prevent them from reaching the column retain the sample and release it gradually to the column ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Split injection is carried out by splitting off some of the sample so that it does not enter the column splitting the sample into smaller portions to inject sequentially None of these 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 splitting the sample into smaller portions to inject sequentially None of these splitting the sample into smaller portions to inject at the same time through parallel ports ANSWER DOWNLOAD EXAMIANS APP
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