Gas Chromatography Helium is generally preferred as carrier gas over nitrogen and hydrogen because it has a lower viscosity it is inert all of above it doubles up as a party gas for balloons and funny voices it has a lower viscosity it is inert all of above it doubles up as a party gas for balloons and funny voices ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Sample injection is considered successful if the sample is concentrated at the start of the column the sample is homogenously spread along the column all of the sample in the injector has been added to the column the sample is spread evenly along the column the sample is concentrated at the start of the column the sample is homogenously spread along the column all of the sample in the injector has been added to the column the sample is spread evenly along the column ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Theoretical plates are used to estimate the efficiency of a column measure the distribution of the analyte between mobile and stationary phases determine the thickness of the stationary phase None of these estimate the efficiency of a column measure the distribution of the analyte between mobile and stationary phases determine the thickness of the stationary phase None of these ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Sample retention in the column is measured by retention factor retention time retention index all of these retention factor retention time retention index all of these ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography What are the benefits of decreasing the column internal diameter? Increased resolution All of these Increased sample capacity Reduced risk of column overloading Increased resolution All of these Increased sample capacity Reduced risk of column overloading ANSWER DOWNLOAD EXAMIANS APP
Gas Chromatography Column bleeding occurs when elution of the analyte is extended over time the column is cracked and stationary phase leaks out traces of the stationary phase are eluted the column breaks during installation and causes personal injury elution of the analyte is extended over time the column is cracked and stationary phase leaks out traces of the stationary phase are eluted the column breaks during installation and causes personal injury ANSWER DOWNLOAD EXAMIANS APP
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