Gas Chromatography Split injection is carried out by splitting the sample into smaller portions to inject at the same time through parallel ports splitting the sample into smaller portions to inject sequentially 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 at the same time through parallel ports splitting the sample into smaller portions to inject sequentially splitting off some of the sample so that it does not enter the column None of these 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 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 Sample injection is considered successful if the sample is homogenously spread along the column the sample is spread evenly along the column the sample is concentrated at the start of the column all of the sample in the injector has been added to the column the sample is homogenously spread along the column the sample is spread evenly along the column the sample is concentrated at the start of the column all of the sample in the injector has been added to the column ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Helium is generally preferred as carrier gas over nitrogen and hydrogen because 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 it doubles up as a party gas for balloons and funny voices all of above ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography A retention gap is placed between the injector and the front of the column to All of these retain contaminants and prevent them from reaching the column retain the sample and release it gradually to the column prevent backflush of the injected solution All of these retain contaminants and prevent them from reaching the column retain the sample and release it gradually to the column prevent backflush of the injected solution ANSWER DOWNLOAD EXAMIANS APP
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