Gas Chromatography What is the typical internal diameter of fused silica capillary columns? 1.0-2.0 mm 0.3-0.5mm 0.5-1.0 mm 0.2-0.3 mm 1.0-2.0 mm 0.3-0.5mm 0.5-1.0 mm 0.2-0.3 mm 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 is inert all of above it has a lower viscosity it doubles up as a party gas for balloons and funny voices it is inert all of above it has a lower viscosity ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Which of the statements is correct? 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 All of these Gas chromatography is used to analyse gases ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Doubling the column's length increases resolution by a factor of (2)0.5 4 3 2 (2)0.5 4 3 2 ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography What does the retention factor, k', describe? 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 The migration rate of an analyte through a column The distribution of an analyte between the stationary and the mobile phase All of these ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography A retention gap is placed between the injector and the front of the column to prevent backflush of the injected solution retain the sample and release it gradually to the column retain contaminants and prevent them from reaching the column All of these prevent backflush of the injected solution retain the sample and release it gradually to the column retain contaminants and prevent them from reaching the column All of these ANSWER DOWNLOAD EXAMIANS APP
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